From 519b5f6634cb7a39b0acd0a413f6d82eb969c3a9 Mon Sep 17 00:00:00 2001
From: Ivan <8611739+IRBorisov@users.noreply.github.com>
Date: Sun, 26 Jan 2025 22:24:34 +0300
Subject: [PATCH] F: Implement react-query pt4

---
 .../frontend/src/app/GlobalOssContext.tsx     |  63 --
 .../frontend/src/app/GlobalProviders.tsx      |   3 -
 rsconcept/frontend/src/backend/library/api.ts |  10 +-
 .../library/useIsProcessingLibrary.tsx        |   6 +-
 .../src/backend/library/useLibraryItem.tsx    |  23 +
 rsconcept/frontend/src/backend/oss/api.ts     |   2 +-
 rsconcept/frontend/src/backend/oss/useOSS.tsx |   6 +-
 .../src/backend/oss/useUpdatePositions.tsx    |   2 +-
 rsconcept/frontend/src/backend/rsform/api.ts  |   2 +-
 .../frontend/src/backend/rsform/useRSForm.tsx |   4 +-
 .../src/dialogs/DlgCloneLibraryItem.tsx       |   2 +-
 .../DlgEditVersions/DlgEditVersions.tsx       |  48 +-
 rsconcept/frontend/src/models/library.ts      |  11 +-
 rsconcept/frontend/src/pages/HomePage.tsx     |   2 +-
 .../pages/ManualsPage/items/ui/HelpRSMenu.tsx |   4 -
 .../OssPage/EditorOssCard/EditorOssCard.tsx   |  22 +-
 .../pages/OssPage/EditorOssCard/FormOSS.tsx   |  12 +-
 .../OssPage/EditorOssGraph/EditorOssGraph.tsx |   9 +-
 .../EditorOssGraph/NodeContextMenu.tsx        |  21 +-
 .../pages/OssPage/EditorOssGraph/OssFlow.tsx  |  79 ++-
 .../EditorOssGraph/ToolbarOssGraph.tsx        |  22 +-
 .../src/pages/OssPage/MenuOssTabs.tsx         |  18 +-
 .../src/pages/OssPage/OssEditContext.tsx      | 447 ++++++--------
 .../frontend/src/pages/OssPage/OssPage.tsx    |  60 +-
 .../frontend/src/pages/OssPage/OssTabs.tsx    | 153 ++---
 .../EditorConstituenta/ControlsOverlay.tsx    |  55 --
 .../EditorConstituenta/EditorConstituenta.tsx |  61 +-
 .../EditorConstituenta/EditorControls.tsx     |  84 +++
 .../EditorConstituenta/FormConstituenta.tsx   | 145 ++---
 .../ToolbarConstituenta.tsx                   |  45 +-
 .../EditorRSExpression/EditorRSExpression.tsx |   4 +-
 .../EditorRSFormCard/EditorLibraryItem.tsx    | 105 ++--
 .../EditorRSFormCard/EditorRSFormCard.tsx     |  22 +-
 .../EditorRSFormCard/FormRSForm.tsx           |  23 +-
 .../EditorRSFormCard/ToolbarItemAccess.tsx    |  21 +-
 .../EditorRSFormCard/ToolbarRSFormCard.tsx    |  23 +-
 .../EditorRSFormCard/ToolbarVersioning.tsx    |  55 +-
 .../RSFormPage/EditorRSList/EditorRSList.tsx  |  12 +-
 .../RSFormPage/EditorRSList/ToolbarRSList.tsx |  16 +-
 .../EditorTermGraph/EditorTermGraph.tsx       |  10 +-
 .../RSFormPage/EditorTermGraph/TGFlow.tsx     |  26 +-
 .../EditorTermGraph/ToolbarTermGraph.tsx      |  21 +-
 .../RSFormPage/EditorTermGraph/ViewHidden.tsx |   8 +-
 .../src/pages/RSFormPage/MenuRSTabs.tsx       | 187 ++++--
 .../src/pages/RSFormPage/RSEditContext.tsx    | 560 ++++--------------
 .../src/pages/RSFormPage/RSFormPage.tsx       |  72 ++-
 .../frontend/src/pages/RSFormPage/RSTabs.tsx  | 274 ++-------
 .../ViewConstituents/ViewConstituents.tsx     |  11 +-
 rsconcept/frontend/src/stores/modification.ts |  11 +
 rsconcept/frontend/src/utils/utils.ts         |  23 +-
 50 files changed, 1317 insertions(+), 1588 deletions(-)
 delete mode 100644 rsconcept/frontend/src/app/GlobalOssContext.tsx
 create mode 100644 rsconcept/frontend/src/backend/library/useLibraryItem.tsx
 delete mode 100644 rsconcept/frontend/src/pages/RSFormPage/EditorConstituenta/ControlsOverlay.tsx
 create mode 100644 rsconcept/frontend/src/pages/RSFormPage/EditorConstituenta/EditorControls.tsx
 create mode 100644 rsconcept/frontend/src/stores/modification.ts

diff --git a/rsconcept/frontend/src/app/GlobalOssContext.tsx b/rsconcept/frontend/src/app/GlobalOssContext.tsx
deleted file mode 100644
index 30a40e87..00000000
--- a/rsconcept/frontend/src/app/GlobalOssContext.tsx
+++ /dev/null
@@ -1,63 +0,0 @@
-'use client';
-
-import { createContext, useCallback, useContext, useState } from 'react';
-
-import { useOss, useOssInvalidate, useOssUpdate } from '@/backend/oss/useOSS';
-import { ErrorData } from '@/components/info/InfoError';
-import { LibraryItemID } from '@/models/library';
-import { IOperationSchema, IOperationSchemaData } from '@/models/oss';
-import { contextOutsideScope } from '@/utils/labels';
-
-interface IGlobalOssContext {
-  schema: IOperationSchema | undefined;
-  setID: (id: LibraryItemID | undefined) => void;
-  setData: (data: IOperationSchemaData) => void;
-  loading: boolean;
-  loadingError: ErrorData;
-
-  invalidate: () => Promise<void>;
-  invalidateItem: (target: LibraryItemID) => void;
-  partialUpdate: (data: Partial<IOperationSchema>) => void;
-}
-
-const GlobalOssContext = createContext<IGlobalOssContext | null>(null);
-export const useGlobalOss = (): IGlobalOssContext => {
-  const context = useContext(GlobalOssContext);
-  if (context === null) {
-    throw new Error(contextOutsideScope('useGlobalOss', 'GlobalOssState'));
-  }
-  return context;
-};
-
-export const GlobalOssState = ({ children }: React.PropsWithChildren) => {
-  const [ossID, setID] = useState<LibraryItemID | undefined>(undefined);
-  const { schema: schema, error: loadingError, isLoading: loading } = useOss({ itemID: ossID });
-  const { update, partialUpdate } = useOssUpdate({ itemID: ossID });
-  const { invalidate } = useOssInvalidate({ itemID: ossID });
-
-  const invalidateItem = useCallback(
-    (target: LibraryItemID) => {
-      if (schema?.schemas.includes(target)) {
-        invalidate().catch(console.error);
-      }
-    },
-    [invalidate, schema]
-  );
-
-  return (
-    <GlobalOssContext
-      value={{
-        schema,
-        setID,
-        setData: update,
-        loading,
-        loadingError,
-        partialUpdate,
-        invalidateItem,
-        invalidate
-      }}
-    >
-      {children}
-    </GlobalOssContext>
-  );
-};
diff --git a/rsconcept/frontend/src/app/GlobalProviders.tsx b/rsconcept/frontend/src/app/GlobalProviders.tsx
index 9785495a..21f05748 100644
--- a/rsconcept/frontend/src/app/GlobalProviders.tsx
+++ b/rsconcept/frontend/src/app/GlobalProviders.tsx
@@ -6,7 +6,6 @@ import { ErrorBoundary } from 'react-error-boundary';
 import { IntlProvider } from 'react-intl';
 
 import { queryClient } from '@/backend/queryClient';
-import { GlobalOssState } from '@/app/GlobalOssContext';
 
 import ErrorFallback from './ErrorFallback';
 
@@ -31,12 +30,10 @@ function GlobalProviders({ children }: React.PropsWithChildren) {
   >
   <IntlProvider locale='ru' defaultLocale='ru'>
   <QueryClientProvider client={queryClient}>
-  <GlobalOssState>
   
     <ReactQueryDevtools initialIsOpen={false} />
     {children}
   
-  </GlobalOssState>
   </QueryClientProvider>
   </IntlProvider>
   </ErrorBoundary>);
diff --git a/rsconcept/frontend/src/backend/library/api.ts b/rsconcept/frontend/src/backend/library/api.ts
index 1afc069c..79f5b8d2 100644
--- a/rsconcept/frontend/src/backend/library/api.ts
+++ b/rsconcept/frontend/src/backend/library/api.ts
@@ -2,10 +2,13 @@ import { queryOptions } from '@tanstack/react-query';
 
 import { axiosInstance } from '@/backend/axiosInstance';
 import { DELAYS } from '@/backend/configuration';
-import { AccessPolicy, ILibraryItem, IVersionData, LibraryItemID, VersionID } from '@/models/library';
+import { AccessPolicy, ILibraryItem, IVersionData, LibraryItemID, LibraryItemType, VersionID } from '@/models/library';
 import { ConstituentaID, IRSFormData } from '@/models/rsform';
 import { UserID } from '@/models/user';
 
+import { ossApi } from '../oss/api';
+import { rsformsApi } from '../rsform/api';
+
 /**
  * Represents update data for renaming Location.
  */
@@ -67,6 +70,11 @@ export const libraryApi = {
           })
           .then(response => response.data)
     }),
+  getItemQueryOptions: ({ itemID, itemType }: { itemID: LibraryItemID; itemType: LibraryItemType }) => {
+    return itemType === LibraryItemType.RSFORM
+      ? rsformsApi.getRSFormQueryOptions({ itemID })
+      : ossApi.getOssQueryOptions({ itemID });
+  },
   getTemplatesQueryOptions: () =>
     queryOptions({
       queryKey: [libraryApi.baseKey, 'templates'],
diff --git a/rsconcept/frontend/src/backend/library/useIsProcessingLibrary.tsx b/rsconcept/frontend/src/backend/library/useIsProcessingLibrary.tsx
index c278c6ea..d906cc9b 100644
--- a/rsconcept/frontend/src/backend/library/useIsProcessingLibrary.tsx
+++ b/rsconcept/frontend/src/backend/library/useIsProcessingLibrary.tsx
@@ -1,8 +1,12 @@
 import { useIsMutating } from '@tanstack/react-query';
 
+import { ossApi } from '../oss/api';
+import { rsformsApi } from '../rsform/api';
 import { libraryApi } from './api';
 
 export const useIsProcessingLibrary = () => {
   const countMutations = useIsMutating({ mutationKey: [libraryApi.baseKey] });
-  return countMutations !== 0;
+  const countOss = useIsMutating({ mutationKey: [ossApi.baseKey] });
+  const countRSForm = useIsMutating({ mutationKey: [rsformsApi.baseKey] });
+  return countMutations + countOss + countRSForm !== 0;
 };
diff --git a/rsconcept/frontend/src/backend/library/useLibraryItem.tsx b/rsconcept/frontend/src/backend/library/useLibraryItem.tsx
new file mode 100644
index 00000000..340a973d
--- /dev/null
+++ b/rsconcept/frontend/src/backend/library/useLibraryItem.tsx
@@ -0,0 +1,23 @@
+import { useQuery } from '@tanstack/react-query';
+
+import { ILibraryItemVersioned, LibraryItemID, LibraryItemType } from '@/models/library';
+
+import { ossApi } from '../oss/api';
+import { rsformsApi } from '../rsform/api';
+
+export function useLibraryItem({ itemID, itemType }: { itemID: LibraryItemID; itemType: LibraryItemType }) {
+  const { data: rsForm } = useQuery({
+    ...rsformsApi.getRSFormQueryOptions({ itemID }),
+    enabled: itemType === LibraryItemType.RSFORM
+  });
+  const { data: oss } = useQuery({
+    ...ossApi.getOssQueryOptions({ itemID }),
+    enabled: itemType === LibraryItemType.OSS
+  });
+  return {
+    item:
+      itemType === LibraryItemType.RSFORM
+        ? (rsForm as ILibraryItemVersioned | undefined)
+        : (oss as ILibraryItemVersioned | undefined)
+  };
+}
diff --git a/rsconcept/frontend/src/backend/oss/api.ts b/rsconcept/frontend/src/backend/oss/api.ts
index 4a4d4e8a..7e2820fb 100644
--- a/rsconcept/frontend/src/backend/oss/api.ts
+++ b/rsconcept/frontend/src/backend/oss/api.ts
@@ -92,7 +92,7 @@ export interface ICstRelocateDTO {
 }
 
 export const ossApi = {
-  baseKey: 'library',
+  baseKey: 'oss',
 
   getOssQueryOptions: ({ itemID }: { itemID?: LibraryItemID }) => {
     return queryOptions({
diff --git a/rsconcept/frontend/src/backend/oss/useOSS.tsx b/rsconcept/frontend/src/backend/oss/useOSS.tsx
index 6a99dad4..4458e82e 100644
--- a/rsconcept/frontend/src/backend/oss/useOSS.tsx
+++ b/rsconcept/frontend/src/backend/oss/useOSS.tsx
@@ -1,10 +1,10 @@
 import { useQuery, useQueryClient, useSuspenseQuery } from '@tanstack/react-query';
 
+import { useLibrary, useLibrarySuspense } from '@/backend/library/useLibrary';
 import { LibraryItemID } from '@/models/library';
 import { IOperationSchema, IOperationSchemaData } from '@/models/oss';
 import { OssLoader } from '@/models/OssLoader';
 
-import { useLibrary, useLibrarySuspense } from '@/backend/library/useLibrary';
 import { ossApi } from './api';
 
 export function useOss({ itemID }: { itemID?: LibraryItemID }) {
@@ -17,12 +17,12 @@ export function useOss({ itemID }: { itemID?: LibraryItemID }) {
   return { schema: schema, isLoading: isLoading || libraryLoading, error: error };
 }
 
-export function useOssSuspense({ itemID }: { itemID?: LibraryItemID }) {
+export function useOssSuspense({ itemID }: { itemID: LibraryItemID }) {
   const { items: libraryItems } = useLibrarySuspense();
   const { data } = useSuspenseQuery({
     ...ossApi.getOssQueryOptions({ itemID })
   });
-  const schema = data ? new OssLoader(data, libraryItems).produceOSS() : undefined;
+  const schema = new OssLoader(data!, libraryItems).produceOSS();
   return { schema };
 }
 
diff --git a/rsconcept/frontend/src/backend/oss/useUpdatePositions.tsx b/rsconcept/frontend/src/backend/oss/useUpdatePositions.tsx
index 655d7a68..22cdbe4d 100644
--- a/rsconcept/frontend/src/backend/oss/useUpdatePositions.tsx
+++ b/rsconcept/frontend/src/backend/oss/useUpdatePositions.tsx
@@ -14,7 +14,7 @@ export const useUpdatePositions = () => {
     onSuccess: (_, variables) => updateTimestamp(variables.itemID)
   });
   return {
-    cstDelete: (
+    updatePositions: (
       data: {
         itemID: LibraryItemID; //
         positions: IOperationPosition[];
diff --git a/rsconcept/frontend/src/backend/rsform/api.ts b/rsconcept/frontend/src/backend/rsform/api.ts
index c4391a62..35f1993b 100644
--- a/rsconcept/frontend/src/backend/rsform/api.ts
+++ b/rsconcept/frontend/src/backend/rsform/api.ts
@@ -107,7 +107,7 @@ export interface ICheckConstituentaDTO {
 }
 
 export const rsformsApi = {
-  baseKey: 'library',
+  baseKey: 'rsform',
 
   getRSFormQueryOptions: ({ itemID, version }: { itemID?: LibraryItemID; version?: VersionID }) => {
     return queryOptions({
diff --git a/rsconcept/frontend/src/backend/rsform/useRSForm.tsx b/rsconcept/frontend/src/backend/rsform/useRSForm.tsx
index 66050a4a..86334a5f 100644
--- a/rsconcept/frontend/src/backend/rsform/useRSForm.tsx
+++ b/rsconcept/frontend/src/backend/rsform/useRSForm.tsx
@@ -15,11 +15,11 @@ export function useRSForm({ itemID, version }: { itemID?: LibraryItemID; version
   return { schema, isLoading, error };
 }
 
-export function useRSFormSuspense({ itemID, version }: { itemID?: LibraryItemID; version?: VersionID }) {
+export function useRSFormSuspense({ itemID, version }: { itemID: LibraryItemID; version?: VersionID }) {
   const { data } = useSuspenseQuery({
     ...rsformsApi.getRSFormQueryOptions({ itemID, version })
   });
-  const schema = data ? new RSFormLoader(data).produceRSForm() : undefined;
+  const schema = new RSFormLoader(data!).produceRSForm();
   return { schema };
 }
 
diff --git a/rsconcept/frontend/src/dialogs/DlgCloneLibraryItem.tsx b/rsconcept/frontend/src/dialogs/DlgCloneLibraryItem.tsx
index cb9ae85d..d5633be0 100644
--- a/rsconcept/frontend/src/dialogs/DlgCloneLibraryItem.tsx
+++ b/rsconcept/frontend/src/dialogs/DlgCloneLibraryItem.tsx
@@ -4,6 +4,7 @@ import clsx from 'clsx';
 import { useState } from 'react';
 import { toast } from 'react-toastify';
 
+import { useConceptNavigation } from '@/app/Navigation/NavigationContext';
 import { urls } from '@/app/urls';
 import { useAuth } from '@/backend/auth/useAuth';
 import { IRSFormCloneDTO } from '@/backend/library/api';
@@ -18,7 +19,6 @@ import MiniButton from '@/components/ui/MiniButton';
 import Modal from '@/components/ui/Modal';
 import TextArea from '@/components/ui/TextArea';
 import TextInput from '@/components/ui/TextInput';
-import { useConceptNavigation } from '@/app/Navigation/NavigationContext';
 import { AccessPolicy, ILibraryItem, LocationHead } from '@/models/library';
 import { cloneTitle, combineLocation, validateLocation } from '@/models/libraryAPI';
 import { ConstituentaID } from '@/models/rsform';
diff --git a/rsconcept/frontend/src/dialogs/DlgEditVersions/DlgEditVersions.tsx b/rsconcept/frontend/src/dialogs/DlgEditVersions/DlgEditVersions.tsx
index 1c920962..660fa82f 100644
--- a/rsconcept/frontend/src/dialogs/DlgEditVersions/DlgEditVersions.tsx
+++ b/rsconcept/frontend/src/dialogs/DlgEditVersions/DlgEditVersions.tsx
@@ -1,34 +1,51 @@
 'use client';
 
 import { useEffect, useState } from 'react';
+import { toast } from 'react-toastify';
 
+import { useConceptNavigation } from '@/app/Navigation/NavigationContext';
+import { urls } from '@/app/urls';
+import { useIsProcessingLibrary } from '@/backend/library/useIsProcessingLibrary';
+import { useVersionDelete } from '@/backend/library/useVersionDelete';
+import { useVersionUpdate } from '@/backend/library/useVersionUpdate';
 import { IconReset, IconSave } from '@/components/Icons';
 import MiniButton from '@/components/ui/MiniButton';
 import Modal from '@/components/ui/Modal';
 import TextArea from '@/components/ui/TextArea';
 import TextInput from '@/components/ui/TextInput';
-import { IVersionData, IVersionInfo, VersionID } from '@/models/library';
+import { ILibraryItemVersioned, IVersionData, IVersionInfo, VersionID } from '@/models/library';
 import { useDialogsStore } from '@/stores/dialogs';
+import { information } from '@/utils/labels';
 
 import TableVersions from './TableVersions';
 
 export interface DlgEditVersionsProps {
-  versions: IVersionInfo[];
-  onDelete: (versionID: VersionID) => void;
-  onUpdate: (versionID: VersionID, data: IVersionData) => void;
+  item: ILibraryItemVersioned;
 }
 
 function DlgEditVersions() {
-  const { versions, onDelete, onUpdate } = useDialogsStore(state => state.props as DlgEditVersionsProps);
-  const [selected, setSelected] = useState<IVersionInfo | undefined>(undefined);
-  const processing = false; // TODO: fix processing hook and versions update
+  const { item } = useDialogsStore(state => state.props as DlgEditVersionsProps);
+  const router = useConceptNavigation();
+  const processing = useIsProcessingLibrary();
+  const { versionDelete } = useVersionDelete();
+  const { versionUpdate } = useVersionUpdate();
 
+  const [selected, setSelected] = useState<IVersionInfo | undefined>(undefined);
   const [version, setVersion] = useState('');
   const [description, setDescription] = useState('');
 
-  const isValid = selected && versions.every(ver => ver.id === selected.id || ver.version != version);
+  const isValid = selected && item.versions.every(ver => ver.id === selected.id || ver.version != version);
   const isModified = selected && (selected.version != version || selected.description != description);
 
+  function handleDeleteVersion(versionID: VersionID) {
+    versionDelete({ itemID: item.id, versionID: versionID }, () => {
+      toast.success(information.versionDestroyed);
+      if (versionID === versionID) {
+        router.push(urls.schema(item.id));
+      }
+    });
+  }
+
   function handleUpdate() {
     if (!isModified || !selected || processing || !isValid) {
       return;
@@ -37,7 +54,14 @@ function DlgEditVersions() {
       version: version,
       description: description
     };
-    onUpdate(selected.id, data);
+    versionUpdate(
+      {
+        itemID: item.id, //
+        versionID: selected.id,
+        data: data
+      },
+      () => toast.success(information.changesSaved)
+    );
   }
 
   function handleReset() {
@@ -57,9 +81,9 @@ function DlgEditVersions() {
     <Modal readonly header='Редактирование версий' className='flex flex-col w-[40rem] px-6 gap-3 pb-6'>
       <TableVersions
         processing={processing}
-        items={versions}
-        onDelete={onDelete}
-        onSelect={versionID => setSelected(versions.find(ver => ver.id === versionID))}
+        items={item.versions}
+        onDelete={handleDeleteVersion}
+        onSelect={versionID => setSelected(item.versions.find(ver => ver.id === versionID))}
         selected={selected?.id}
       />
 
diff --git a/rsconcept/frontend/src/models/library.ts b/rsconcept/frontend/src/models/library.ts
index 6f9f498d..ed2d6067 100644
--- a/rsconcept/frontend/src/models/library.ts
+++ b/rsconcept/frontend/src/models/library.ts
@@ -100,16 +100,9 @@ export interface ILibraryItemVersioned extends ILibraryItemData {
  * Represents common {@link ILibraryItem} editor controller.
  */
 export interface ILibraryItemEditor {
-  schema?: ILibraryItemData;
+  schema: ILibraryItemData;
+  deleteSchema: () => void;
 
   isMutable: boolean;
-  isProcessing: boolean;
   isAttachedToOSS: boolean;
-
-  setOwner: (newOwner: UserID) => void;
-  setAccessPolicy: (newPolicy: AccessPolicy) => void;
-  promptEditors: () => void;
-  promptLocation: () => void;
-
-  share: () => void;
 }
diff --git a/rsconcept/frontend/src/pages/HomePage.tsx b/rsconcept/frontend/src/pages/HomePage.tsx
index 2cb371a4..3b257506 100644
--- a/rsconcept/frontend/src/pages/HomePage.tsx
+++ b/rsconcept/frontend/src/pages/HomePage.tsx
@@ -1,9 +1,9 @@
 import { useEffect } from 'react';
 
+import { useConceptNavigation } from '@/app/Navigation/NavigationContext';
 import { urls } from '@/app/urls';
 import { useAuth } from '@/backend/auth/useAuth';
 import Loader from '@/components/ui/Loader';
-import { useConceptNavigation } from '@/app/Navigation/NavigationContext';
 import { PARAMETER } from '@/utils/constants';
 
 function HomePage() {
diff --git a/rsconcept/frontend/src/pages/ManualsPage/items/ui/HelpRSMenu.tsx b/rsconcept/frontend/src/pages/ManualsPage/items/ui/HelpRSMenu.tsx
index 123d67bd..df8f58c6 100644
--- a/rsconcept/frontend/src/pages/ManualsPage/items/ui/HelpRSMenu.tsx
+++ b/rsconcept/frontend/src/pages/ManualsPage/items/ui/HelpRSMenu.tsx
@@ -8,7 +8,6 @@ import {
   IconEdit2,
   IconEditor,
   IconMenu,
-  IconNewVersion,
   IconOwner,
   IconReader,
   IconShare,
@@ -54,9 +53,6 @@ function HelpRSMenu() {
           <li>
             <IconClone className='inline-icon icon-green' /> Клонировать – создать копию схемы
           </li>
-          <li>
-            <IconNewVersion size='1.25rem' className='inline-icon icon-green' /> Сохранить версию
-          </li>
           <li>
             <IconDownload className='inline-icon' /> Выгрузить – сохранить в файле формата Экстеор
           </li>
diff --git a/rsconcept/frontend/src/pages/OssPage/EditorOssCard/EditorOssCard.tsx b/rsconcept/frontend/src/pages/OssPage/EditorOssCard/EditorOssCard.tsx
index 1f7679a9..7c8db20b 100644
--- a/rsconcept/frontend/src/pages/OssPage/EditorOssCard/EditorOssCard.tsx
+++ b/rsconcept/frontend/src/pages/OssPage/EditorOssCard/EditorOssCard.tsx
@@ -3,22 +3,19 @@
 import clsx from 'clsx';
 
 import FlexColumn from '@/components/ui/FlexColumn';
+import { LibraryItemType } from '@/models/library';
 import EditorLibraryItem from '@/pages/RSFormPage/EditorRSFormCard/EditorLibraryItem';
 import ToolbarRSFormCard from '@/pages/RSFormPage/EditorRSFormCard/ToolbarRSFormCard';
+import { useModificationStore } from '@/stores/modification';
 import { globals } from '@/utils/constants';
 
 import { useOssEdit } from '../OssEditContext';
 import FormOSS from './FormOSS';
 import OssStats from './OssStats';
 
-interface EditorOssCardProps {
-  isModified: boolean;
-  setIsModified: (newValue: boolean) => void;
-  onDestroy: () => void;
-}
-
-function EditorOssCard({ isModified, onDestroy, setIsModified }: EditorOssCardProps) {
+function EditorOssCard() {
   const controller = useOssEdit();
+  const { isModified } = useModificationStore();
 
   function initiateSubmit() {
     const element = document.getElementById(globals.library_item_editor) as HTMLFormElement;
@@ -38,12 +35,7 @@ function EditorOssCard({ isModified, onDestroy, setIsModified }: EditorOssCardPr
 
   return (
     <>
-      <ToolbarRSFormCard
-        modified={isModified}
-        onSubmit={initiateSubmit}
-        onDestroy={onDestroy}
-        controller={controller}
-      />
+      <ToolbarRSFormCard onSubmit={initiateSubmit} controller={controller} />
       <div
         onKeyDown={handleInput}
         className={clsx(
@@ -54,8 +46,8 @@ function EditorOssCard({ isModified, onDestroy, setIsModified }: EditorOssCardPr
         )}
       >
         <FlexColumn className='px-3'>
-          <FormOSS id={globals.library_item_editor} isModified={isModified} setIsModified={setIsModified} />
-          <EditorLibraryItem item={controller.schema} isModified={isModified} controller={controller} />
+          <FormOSS id={globals.library_item_editor} />
+          <EditorLibraryItem itemID={controller.schema.id} itemType={LibraryItemType.OSS} controller={controller} />
         </FlexColumn>
 
         {controller.schema ? <OssStats stats={controller.schema.stats} /> : null}
diff --git a/rsconcept/frontend/src/pages/OssPage/EditorOssCard/FormOSS.tsx b/rsconcept/frontend/src/pages/OssPage/EditorOssCard/FormOSS.tsx
index 032ce23e..88fb9b3a 100644
--- a/rsconcept/frontend/src/pages/OssPage/EditorOssCard/FormOSS.tsx
+++ b/rsconcept/frontend/src/pages/OssPage/EditorOssCard/FormOSS.tsx
@@ -6,25 +6,27 @@ import { toast } from 'react-toastify';
 
 import { ILibraryUpdateDTO } from '@/backend/library/api';
 import { useUpdateItem } from '@/backend/library/useUpdateItem';
+import { useIsProcessingOss } from '@/backend/oss/useIsProcessingOss';
 import { IconSave } from '@/components/Icons';
 import SubmitButton from '@/components/ui/SubmitButton';
 import TextArea from '@/components/ui/TextArea';
 import TextInput from '@/components/ui/TextInput';
 import { LibraryItemType } from '@/models/library';
 import ToolbarItemAccess from '@/pages/RSFormPage/EditorRSFormCard/ToolbarItemAccess';
+import { useModificationStore } from '@/stores/modification';
 import { information } from '@/utils/labels';
 
 import { useOssEdit } from '../OssEditContext';
 
 interface FormOSSProps {
   id?: string;
-  isModified: boolean;
-  setIsModified: (newValue: boolean) => void;
 }
 
-function FormOSS({ id, isModified, setIsModified }: FormOSSProps) {
+function FormOSS({ id }: FormOSSProps) {
   const { updateItem: update } = useUpdateItem();
   const controller = useOssEdit();
+  const { isModified, setIsModified } = useModificationStore();
+  const isProcessing = useIsProcessingOss();
   const schema = controller.schema;
 
   const [title, setTitle] = useState(schema?.title ?? '');
@@ -125,14 +127,14 @@ function FormOSS({ id, isModified, setIsModified }: FormOSSProps) {
         label='Описание'
         rows={3}
         value={comment}
-        disabled={!controller.isMutable || controller.isProcessing}
+        disabled={!controller.isMutable || isProcessing}
         onChange={event => setComment(event.target.value)}
       />
       {controller.isMutable || isModified ? (
         <SubmitButton
           text='Сохранить изменения'
           className='self-center mt-4'
-          loading={controller.isProcessing}
+          loading={isProcessing}
           disabled={!isModified}
           icon={<IconSave size='1.25rem' />}
         />
diff --git a/rsconcept/frontend/src/pages/OssPage/EditorOssGraph/EditorOssGraph.tsx b/rsconcept/frontend/src/pages/OssPage/EditorOssGraph/EditorOssGraph.tsx
index 48a7d5b9..5d38ce39 100644
--- a/rsconcept/frontend/src/pages/OssPage/EditorOssGraph/EditorOssGraph.tsx
+++ b/rsconcept/frontend/src/pages/OssPage/EditorOssGraph/EditorOssGraph.tsx
@@ -4,15 +4,10 @@ import { ReactFlowProvider } from 'reactflow';
 
 import OssFlow from './OssFlow';
 
-interface EditorOssGraphProps {
-  isModified: boolean;
-  setIsModified: (newValue: boolean) => void;
-}
-
-function EditorOssGraph({ isModified, setIsModified }: EditorOssGraphProps) {
+function EditorOssGraph() {
   return (
     <ReactFlowProvider>
-      <OssFlow isModified={isModified} setIsModified={setIsModified} />
+      <OssFlow />
     </ReactFlowProvider>
   );
 }
diff --git a/rsconcept/frontend/src/pages/OssPage/EditorOssGraph/NodeContextMenu.tsx b/rsconcept/frontend/src/pages/OssPage/EditorOssGraph/NodeContextMenu.tsx
index 9fd9ccc5..adf7c535 100644
--- a/rsconcept/frontend/src/pages/OssPage/EditorOssGraph/NodeContextMenu.tsx
+++ b/rsconcept/frontend/src/pages/OssPage/EditorOssGraph/NodeContextMenu.tsx
@@ -2,6 +2,7 @@
 
 import { useCallback, useEffect, useRef, useState } from 'react';
 
+import { useIsProcessingOss } from '@/backend/oss/useIsProcessingOss';
 import {
   IconChild,
   IconConnect,
@@ -49,6 +50,8 @@ function NodeContextMenu({
   onRelocateConstituents
 }: NodeContextMenuProps) {
   const controller = useOssEdit();
+  const isProcessing = useIsProcessingOss();
+
   const [isOpen, setIsOpen] = useState(false);
   const ref = useRef<HTMLDivElement>(null);
   const readyForSynthesis = (() => {
@@ -64,7 +67,7 @@ function NodeContextMenu({
       return false;
     }
 
-    const argumentOperations = argumentIDs.map(id => controller.schema!.operationByID.get(id)!);
+    const argumentOperations = argumentIDs.map(id => controller.schema.operationByID.get(id)!);
     if (argumentOperations.some(item => item.result === null)) {
       return false;
     }
@@ -82,7 +85,7 @@ function NodeContextMenu({
   useEffect(() => setIsOpen(true), []);
 
   const handleOpenSchema = () => {
-    controller.openOperationSchema(operation.id);
+    controller.navigateOperationSchema(operation.id);
   };
 
   const handleEditSchema = () => {
@@ -126,7 +129,7 @@ function NodeContextMenu({
           text='Редактировать'
           title='Редактировать операцию'
           icon={<IconEdit2 size='1rem' className='icon-primary' />}
-          disabled={!controller.isMutable || controller.isProcessing}
+          disabled={!controller.isMutable || isProcessing}
           onClick={handleEditOperation}
         />
 
@@ -135,7 +138,7 @@ function NodeContextMenu({
             text='Открыть схему'
             titleHtml={prepareTooltip('Открыть привязанную КС', 'Двойной клик')}
             icon={<IconRSForm size='1rem' className='icon-green' />}
-            disabled={controller.isProcessing}
+            disabled={isProcessing}
             onClick={handleOpenSchema}
           />
         ) : null}
@@ -144,7 +147,7 @@ function NodeContextMenu({
             text='Создать схему'
             title='Создать пустую схему для загрузки'
             icon={<IconNewRSForm size='1rem' className='icon-green' />}
-            disabled={controller.isProcessing}
+            disabled={isProcessing}
             onClick={handleCreateSchema}
           />
         ) : null}
@@ -153,7 +156,7 @@ function NodeContextMenu({
             text={!operation.result ? 'Загрузить схему' : 'Изменить схему'}
             title='Выбрать схему для загрузки'
             icon={<IconConnect size='1rem' className='icon-primary' />}
-            disabled={controller.isProcessing}
+            disabled={isProcessing}
             onClick={handleEditSchema}
           />
         ) : null}
@@ -166,7 +169,7 @@ function NodeContextMenu({
                 : 'Необходимо предоставить все аргументы'
             }
             icon={<IconExecute size='1rem' className='icon-green' />}
-            disabled={controller.isProcessing || !readyForSynthesis}
+            disabled={isProcessing || !readyForSynthesis}
             onClick={handleRunSynthesis}
           />
         ) : null}
@@ -176,7 +179,7 @@ function NodeContextMenu({
             text='Конституенты'
             titleHtml='Перенос конституент</br>между схемами'
             icon={<IconChild size='1rem' className='icon-green' />}
-            disabled={controller.isProcessing}
+            disabled={isProcessing}
             onClick={handleRelocateConstituents}
           />
         ) : null}
@@ -184,7 +187,7 @@ function NodeContextMenu({
         <DropdownButton
           text='Удалить операцию'
           icon={<IconDestroy size='1rem' className='icon-red' />}
-          disabled={!controller.isMutable || controller.isProcessing || !controller.canDelete(operation.id)}
+          disabled={!controller.isMutable || isProcessing || !controller.canDelete(operation.id)}
           onClick={handleDeleteOperation}
         />
       </Dropdown>
diff --git a/rsconcept/frontend/src/pages/OssPage/EditorOssGraph/OssFlow.tsx b/rsconcept/frontend/src/pages/OssPage/EditorOssGraph/OssFlow.tsx
index 029c74bd..a4f077f7 100644
--- a/rsconcept/frontend/src/pages/OssPage/EditorOssGraph/OssFlow.tsx
+++ b/rsconcept/frontend/src/pages/OssPage/EditorOssGraph/OssFlow.tsx
@@ -16,15 +16,23 @@ import {
   useReactFlow
 } from 'reactflow';
 
+import { useConceptNavigation } from '@/app/Navigation/NavigationContext';
+import { urls } from '@/app/urls';
+import { useLibrary } from '@/backend/library/useLibrary';
+import { useInputCreate } from '@/backend/oss/useInputCreate';
+import { useIsProcessingOss } from '@/backend/oss/useIsProcessingOss';
+import { useOperationExecute } from '@/backend/oss/useOperationExecute';
+import { useUpdatePositions } from '@/backend/oss/useUpdatePositions';
 import { CProps } from '@/components/props';
 import Overlay from '@/components/ui/Overlay';
 import { OssNode } from '@/models/miscellaneous';
 import { OperationID } from '@/models/oss';
 import { useMainHeight } from '@/stores/appLayout';
+import { useModificationStore } from '@/stores/modification';
 import { useOSSGraphStore } from '@/stores/ossGraph';
 import { APP_COLORS } from '@/styling/color';
 import { PARAMETER } from '@/utils/constants';
-import { errors } from '@/utils/labels';
+import { errors, information } from '@/utils/labels';
 
 import { useOssEdit } from '../OssEditContext';
 import { OssNodeTypes } from './graph/OssNodeTypes';
@@ -34,20 +42,24 @@ import ToolbarOssGraph from './ToolbarOssGraph';
 const ZOOM_MAX = 2;
 const ZOOM_MIN = 0.5;
 
-interface OssFlowProps {
-  isModified: boolean;
-  setIsModified: (newValue: boolean) => void;
-}
-
-function OssFlow({ isModified, setIsModified }: OssFlowProps) {
+function OssFlow() {
   const mainHeight = useMainHeight();
   const controller = useOssEdit();
+  const router = useConceptNavigation();
+  const { items: libraryItems } = useLibrary();
   const flow = useReactFlow();
+  const { setIsModified } = useModificationStore();
+
+  const isProcessing = useIsProcessingOss();
 
   const showGrid = useOSSGraphStore(state => state.showGrid);
   const edgeAnimate = useOSSGraphStore(state => state.edgeAnimate);
   const edgeStraight = useOSSGraphStore(state => state.edgeStraight);
 
+  const { inputCreate } = useInputCreate();
+  const { operationExecute } = useOperationExecute();
+  const { updatePositions } = useUpdatePositions();
+
   const [nodes, setNodes, onNodesChange] = useNodesState([]);
   const [edges, setEdges, onEdgesChange] = useEdgesState([]);
   const [toggleReset, setToggleReset] = useState(false);
@@ -89,8 +101,8 @@ function OssFlow({ isModified, setIsModified }: OssFlowProps) {
           type: edgeStraight ? 'straight' : 'simplebezier',
           animated: edgeAnimate,
           targetHandle:
-            controller.schema!.operationByID.get(argument.argument)!.position_x >
-            controller.schema!.operationByID.get(argument.operation)!.position_x
+            controller.schema.operationByID.get(argument.argument)!.position_x >
+            controller.schema.operationByID.get(argument.operation)!.position_x
               ? 'right'
               : 'left'
         }))
@@ -117,7 +129,18 @@ function OssFlow({ isModified, setIsModified }: OssFlowProps) {
   }
 
   function handleSavePositions() {
-    controller.savePositions(getPositions(), () => setIsModified(false));
+    const positions = getPositions();
+    updatePositions({ itemID: controller.schema.id, positions: positions }, () => {
+      positions.forEach(item => {
+        const operation = controller.schema.operationByID.get(item.id);
+        if (operation) {
+          operation.position_x = item.position_x;
+          operation.position_y = item.position_y;
+        }
+      });
+      toast.success(information.changesSaved);
+      setIsModified(false);
+    });
   }
 
   function handleCreateOperation(inputs: OperationID[]) {
@@ -149,8 +172,19 @@ function OssFlow({ isModified, setIsModified }: OssFlowProps) {
     handleDeleteOperation(controller.selected[0]);
   }
 
-  function handleCreateInput(target: OperationID) {
-    controller.createInput(target, getPositions());
+  function handleInputCreate(target: OperationID) {
+    const operation = controller.schema.operationByID.get(target);
+    if (!operation) {
+      return;
+    }
+    if (libraryItems.find(item => item.alias === operation.alias && item.location === controller.schema.location)) {
+      toast.error(errors.inputAlreadyExists);
+      return;
+    }
+    inputCreate({ itemID: controller.schema.id, data: { target: target, positions: getPositions() } }, new_schema => {
+      toast.success(information.newLibraryItem);
+      router.push(urls.schema(new_schema.id));
+    });
   }
 
   function handleEditSchema(target: OperationID) {
@@ -161,15 +195,21 @@ function OssFlow({ isModified, setIsModified }: OssFlowProps) {
     controller.promptEditOperation(target, getPositions());
   }
 
-  function handleExecuteOperation(target: OperationID) {
-    controller.executeOperation(target, getPositions());
+  function handleOperationExecute(target: OperationID) {
+    operationExecute(
+      {
+        itemID: controller.schema.id, //
+        data: { target: target, positions: getPositions() }
+      },
+      () => toast.success(information.operationExecuted)
+    );
   }
 
   function handleExecuteSelected() {
     if (controller.selected.length !== 1) {
       return;
     }
-    handleExecuteOperation(controller.selected[0]);
+    handleOperationExecute(controller.selected[0]);
   }
 
   function handleRelocateConstituents(target: OperationID) {
@@ -237,14 +277,14 @@ function OssFlow({ isModified, setIsModified }: OssFlowProps) {
     event.preventDefault();
     event.stopPropagation();
     if (node.data.operation.result) {
-      controller.openOperationSchema(Number(node.id));
+      controller.navigateOperationSchema(Number(node.id));
     } else {
       handleEditOperation(Number(node.id));
     }
   }
 
   function handleKeyDown(event: React.KeyboardEvent<HTMLDivElement>) {
-    if (controller.isProcessing) {
+    if (isProcessing) {
       return;
     }
     if (!controller.isMutable) {
@@ -274,7 +314,6 @@ function OssFlow({ isModified, setIsModified }: OssFlowProps) {
     <div tabIndex={-1} onKeyDown={handleKeyDown}>
       <Overlay position='top-[1.9rem] pt-1 right-1/2 translate-x-1/2' className='rounded-b-2xl cc-blur'>
         <ToolbarOssGraph
-          isModified={isModified}
           onFitView={() => flow.fitView({ duration: PARAMETER.zoomDuration })}
           onCreate={() => handleCreateOperation(controller.selected)}
           onDelete={handleDeleteSelected}
@@ -289,10 +328,10 @@ function OssFlow({ isModified, setIsModified }: OssFlowProps) {
         <NodeContextMenu
           onHide={handleContextMenuHide}
           onDelete={handleDeleteOperation}
-          onCreateInput={handleCreateInput}
+          onCreateInput={handleInputCreate}
           onEditSchema={handleEditSchema}
           onEditOperation={handleEditOperation}
-          onExecuteOperation={handleExecuteOperation}
+          onExecuteOperation={handleOperationExecute}
           onRelocateConstituents={handleRelocateConstituents}
           {...menuProps}
         />
diff --git a/rsconcept/frontend/src/pages/OssPage/EditorOssGraph/ToolbarOssGraph.tsx b/rsconcept/frontend/src/pages/OssPage/EditorOssGraph/ToolbarOssGraph.tsx
index f9c112ac..bad9d138 100644
--- a/rsconcept/frontend/src/pages/OssPage/EditorOssGraph/ToolbarOssGraph.tsx
+++ b/rsconcept/frontend/src/pages/OssPage/EditorOssGraph/ToolbarOssGraph.tsx
@@ -2,6 +2,7 @@
 
 import clsx from 'clsx';
 
+import { useIsProcessingOss } from '@/backend/oss/useIsProcessingOss';
 import {
   IconAnimation,
   IconAnimationOff,
@@ -21,6 +22,7 @@ import BadgeHelp from '@/components/info/BadgeHelp';
 import MiniButton from '@/components/ui/MiniButton';
 import { HelpTopic } from '@/models/miscellaneous';
 import { OperationType } from '@/models/oss';
+import { useModificationStore } from '@/stores/modification';
 import { useOSSGraphStore } from '@/stores/ossGraph';
 import { PARAMETER } from '@/utils/constants';
 import { prepareTooltip } from '@/utils/labels';
@@ -28,7 +30,6 @@ import { prepareTooltip } from '@/utils/labels';
 import { useOssEdit } from '../OssEditContext';
 
 interface ToolbarOssGraphProps {
-  isModified: boolean;
   onCreate: () => void;
   onDelete: () => void;
   onEdit: () => void;
@@ -40,7 +41,6 @@ interface ToolbarOssGraphProps {
 }
 
 function ToolbarOssGraph({
-  isModified,
   onCreate,
   onDelete,
   onEdit,
@@ -51,6 +51,8 @@ function ToolbarOssGraph({
   onResetPositions
 }: ToolbarOssGraphProps) {
   const controller = useOssEdit();
+  const { isModified } = useModificationStore();
+  const isProcessing = useIsProcessingOss();
   const selectedOperation = controller.schema?.operationByID.get(controller.selected[0]);
 
   const showGrid = useOSSGraphStore(state => state.showGrid);
@@ -73,7 +75,7 @@ function ToolbarOssGraph({
       return false;
     }
 
-    const argumentOperations = argumentIDs.map(id => controller.schema!.operationByID.get(id)!);
+    const argumentOperations = argumentIDs.map(id => controller.schema.operationByID.get(id)!);
     if (argumentOperations.some(item => item.result === null)) {
       return false;
     }
@@ -144,35 +146,31 @@ function ToolbarOssGraph({
           <MiniButton
             titleHtml={prepareTooltip('Сохранить изменения', 'Ctrl + S')}
             icon={<IconSave size='1.25rem' className='icon-primary' />}
-            disabled={controller.isProcessing || !isModified}
+            disabled={isProcessing || !isModified}
             onClick={onSavePositions}
           />
           <MiniButton
             titleHtml={prepareTooltip('Новая операция', 'Ctrl + Q')}
             icon={<IconNewItem size='1.25rem' className='icon-green' />}
-            disabled={controller.isProcessing}
+            disabled={isProcessing}
             onClick={onCreate}
           />
           <MiniButton
             title='Активировать операцию'
             icon={<IconExecute size='1.25rem' className='icon-green' />}
-            disabled={controller.isProcessing || controller.selected.length !== 1 || !readyForSynthesis}
+            disabled={isProcessing || controller.selected.length !== 1 || !readyForSynthesis}
             onClick={onExecute}
           />
           <MiniButton
             titleHtml={prepareTooltip('Редактировать выбранную', 'Двойной клик')}
             icon={<IconEdit2 size='1.25rem' className='icon-primary' />}
-            disabled={controller.selected.length !== 1 || controller.isProcessing}
+            disabled={controller.selected.length !== 1 || isProcessing}
             onClick={onEdit}
           />
           <MiniButton
             titleHtml={prepareTooltip('Удалить выбранную', 'Delete')}
             icon={<IconDestroy size='1.25rem' className='icon-red' />}
-            disabled={
-              controller.selected.length !== 1 ||
-              controller.isProcessing ||
-              !controller.canDelete(controller.selected[0])
-            }
+            disabled={controller.selected.length !== 1 || isProcessing || !controller.canDelete(controller.selected[0])}
             onClick={onDelete}
           />
         </div>
diff --git a/rsconcept/frontend/src/pages/OssPage/MenuOssTabs.tsx b/rsconcept/frontend/src/pages/OssPage/MenuOssTabs.tsx
index d68a1db3..addc8b3c 100644
--- a/rsconcept/frontend/src/pages/OssPage/MenuOssTabs.tsx
+++ b/rsconcept/frontend/src/pages/OssPage/MenuOssTabs.tsx
@@ -3,6 +3,7 @@
 import { useConceptNavigation } from '@/app/Navigation/NavigationContext';
 import { urls } from '@/app/urls';
 import { useAuth } from '@/backend/auth/useAuth';
+import { useIsProcessingOss } from '@/backend/oss/useIsProcessingOss';
 import {
   IconAdmin,
   IconAlert,
@@ -25,18 +26,17 @@ import useDropdown from '@/hooks/useDropdown';
 import { UserRole } from '@/models/user';
 import { useRoleStore } from '@/stores/role';
 import { describeAccessMode as describeUserRole, labelAccessMode as labelUserRole } from '@/utils/labels';
+import { sharePage } from '@/utils/utils';
 
 import { useOssEdit } from './OssEditContext';
 
-interface MenuOssTabsProps {
-  onDestroy: () => void;
-}
-
-function MenuOssTabs({ onDestroy }: MenuOssTabsProps) {
+function MenuOssTabs() {
   const controller = useOssEdit();
   const router = useConceptNavigation();
   const { user } = useAuth();
 
+  const isProcessing = useIsProcessingOss();
+
   const role = useRoleStore(state => state.role);
   const setRole = useRoleStore(state => state.setRole);
 
@@ -46,12 +46,12 @@ function MenuOssTabs({ onDestroy }: MenuOssTabsProps) {
 
   function handleDelete() {
     schemaMenu.hide();
-    onDestroy();
+    controller.deleteSchema();
   }
 
   function handleShare() {
     schemaMenu.hide();
-    controller.share();
+    sharePage();
   }
 
   function handleChangeRole(newMode: UserRole) {
@@ -96,7 +96,7 @@ function MenuOssTabs({ onDestroy }: MenuOssTabsProps) {
             <DropdownButton
               text='Удалить схему'
               icon={<IconDestroy size='1rem' className='icon-red' />}
-              disabled={controller.isProcessing || role < UserRole.OWNER}
+              disabled={isProcessing || role < UserRole.OWNER}
               onClick={handleDelete}
             />
           ) : null}
@@ -136,7 +136,7 @@ function MenuOssTabs({ onDestroy }: MenuOssTabsProps) {
               text='Конституенты'
               titleHtml='Перенос конституент</br>между схемами'
               icon={<IconChild size='1rem' className='icon-green' />}
-              disabled={controller.isProcessing}
+              disabled={isProcessing}
               onClick={handleRelocate}
             />
           </Dropdown>
diff --git a/rsconcept/frontend/src/pages/OssPage/OssEditContext.tsx b/rsconcept/frontend/src/pages/OssPage/OssEditContext.tsx
index c3b8510d..49f3c343 100644
--- a/rsconcept/frontend/src/pages/OssPage/OssEditContext.tsx
+++ b/rsconcept/frontend/src/pages/OssPage/OssEditContext.tsx
@@ -6,24 +6,30 @@ import { toast } from 'react-toastify';
 import { useConceptNavigation } from '@/app/Navigation/NavigationContext';
 import { urls } from '@/app/urls';
 import { useAuth } from '@/backend/auth/useAuth';
-import { useLibrary } from '@/backend/library/useLibrary';
-import { useSetAccessPolicy } from '@/backend/library/useSetAccessPolicy';
-import { useSetEditors } from '@/backend/library/useSetEditors';
-import { useSetLocation } from '@/backend/library/useSetLocation';
-import { useSetOwner } from '@/backend/library/useSetOwner';
+import { useDeleteItem } from '@/backend/library/useDeleteItem';
+import { useInputUpdate } from '@/backend/oss/useInputUpdate';
+import { useOperationCreate } from '@/backend/oss/useOperationCreate';
+import { useOperationDelete } from '@/backend/oss/useOperationDelete';
+import { useOperationUpdate } from '@/backend/oss/useOperationUpdate';
 import { useOssSuspense } from '@/backend/oss/useOSS';
-import { AccessPolicy, ILibraryItemEditor, LibraryItemID } from '@/models/library';
-import { Position2D } from '@/models/miscellaneous';
+import { useRelocateConstituents } from '@/backend/oss/useRelocateConstituents';
+import { useUpdatePositions } from '@/backend/oss/useUpdatePositions';
+import { ILibraryItemEditor, LibraryItemID } from '@/models/library';
 import { calculateInsertPosition } from '@/models/miscellaneousAPI';
 import { IOperationPosition, IOperationSchema, OperationID, OperationType } from '@/models/oss';
-import { UserID, UserRole } from '@/models/user';
+import { UserRole } from '@/models/user';
 import { useDialogsStore } from '@/stores/dialogs';
 import { usePreferencesStore } from '@/stores/preferences';
 import { useRoleStore } from '@/stores/role';
 import { PARAMETER } from '@/utils/constants';
-import { errors, information } from '@/utils/labels';
+import { information, prompts } from '@/utils/labels';
 
-import { RSTabID } from '../RSFormPage/RSTabs';
+import { RSTabID } from '../RSFormPage/RSEditContext';
+
+export enum OssTabID {
+  CARD = 0,
+  GRAPH = 1
+}
 
 export interface ICreateOperationPrompt {
   defaultX: number;
@@ -34,36 +40,27 @@ export interface ICreateOperationPrompt {
 }
 
 export interface IOssEditContext extends ILibraryItemEditor {
-  schema?: IOperationSchema;
+  schema: IOperationSchema;
   selected: OperationID[];
 
   isOwned: boolean;
   isMutable: boolean;
-  isProcessing: boolean;
   isAttachedToOSS: boolean;
 
   showTooltip: boolean;
   setShowTooltip: (newValue: boolean) => void;
 
-  setOwner: (newOwner: UserID) => void;
-  setAccessPolicy: (newPolicy: AccessPolicy) => void;
-  promptEditors: () => void;
-  promptLocation: () => void;
+  navigateTab: (tab: OssTabID) => void;
+  navigateOperationSchema: (target: OperationID) => void;
 
+  deleteSchema: () => void;
   setSelected: React.Dispatch<React.SetStateAction<OperationID[]>>;
 
-  share: () => void;
-
-  openOperationSchema: (target: OperationID) => void;
-
-  savePositions: (positions: IOperationPosition[], callback?: () => void) => void;
-  promptCreateOperation: (props: ICreateOperationPrompt) => void;
   canDelete: (target: OperationID) => boolean;
+  promptCreateOperation: (props: ICreateOperationPrompt) => void;
   promptDeleteOperation: (target: OperationID, positions: IOperationPosition[]) => void;
-  createInput: (target: OperationID, positions: IOperationPosition[]) => void;
   promptEditInput: (target: OperationID, positions: IOperationPosition[]) => void;
   promptEditOperation: (target: OperationID, positions: IOperationPosition[]) => void;
-  executeOperation: (target: OperationID, positions: IOperationPosition[]) => void;
   promptRelocateConstituents: (target: OperationID | undefined, positions: IOperationPosition[]) => void;
 }
 
@@ -78,325 +75,229 @@ export const useOssEdit = () => {
 
 interface OssEditStateProps {
   itemID: LibraryItemID;
-  selected: OperationID[];
-  setSelected: React.Dispatch<React.SetStateAction<OperationID[]>>;
 }
 
-export const OssEditState = ({
-  itemID,
-  selected,
-  setSelected,
-  children
-}: React.PropsWithChildren<OssEditStateProps>) => {
+export const OssEditState = ({ itemID, children }: React.PropsWithChildren<OssEditStateProps>) => {
   const router = useConceptNavigation();
   const { user } = useAuth();
-  const { items: libraryItems } = useLibrary();
   const adminMode = usePreferencesStore(state => state.adminMode);
 
   const role = useRoleStore(state => state.role);
   const adjustRole = useRoleStore(state => state.adjustRole);
-  const model = useOssSuspense({ itemID: itemID });
+  const { schema } = useOssSuspense({ itemID: itemID });
 
-  const { setOwner: setItemOwner } = useSetOwner();
-  const { setLocation: setItemLocation } = useSetLocation();
-  const { setAccessPolicy: setItemAccessPolicy } = useSetAccessPolicy();
-  const { setEditors: setItemEditors } = useSetEditors();
+  const isOwned = user?.id === schema.owner || false;
 
-  const isOwned = user?.id === model.schema?.owner || false;
-
-  const isMutable = role > UserRole.READER && !model.schema?.read_only;
+  const isMutable = role > UserRole.READER && !schema.read_only;
 
   const [showTooltip, setShowTooltip] = useState(true);
 
-  const [insertPosition, setInsertPosition] = useState<Position2D>({ x: 0, y: 0 });
-  const [createCallback, setCreateCallback] = useState<((newID: OperationID) => void) | undefined>(undefined);
+  const [selected, setSelected] = useState<OperationID[]>([]);
 
-  const showEditEditors = useDialogsStore(state => state.showEditEditors);
-  const showEditLocation = useDialogsStore(state => state.showChangeLocation);
   const showEditInput = useDialogsStore(state => state.showChangeInputSchema);
   const showEditOperation = useDialogsStore(state => state.showEditOperation);
   const showDeleteOperation = useDialogsStore(state => state.showDeleteOperation);
   const showRelocateConstituents = useDialogsStore(state => state.showRelocateConstituents);
   const showCreateOperation = useDialogsStore(state => state.showCreateOperation);
 
-  const [positions, setPositions] = useState<IOperationPosition[]>([]);
+  const { deleteItem } = useDeleteItem();
+  const { updatePositions } = useUpdatePositions();
+  const { operationCreate } = useOperationCreate();
+  const { operationDelete } = useOperationDelete();
+  const { operationUpdate } = useOperationUpdate();
+  const { relocateConstituents } = useRelocateConstituents();
+  const { inputUpdate } = useInputUpdate();
 
   useEffect(
     () =>
       adjustRole({
-        isOwner: model.isOwned,
-        isEditor: (user && model.schema?.editors.includes(user?.id)) ?? false,
+        isOwner: isOwned,
+        isEditor: (user && schema.editors.includes(user?.id)) ?? false,
         isStaff: user?.is_staff ?? false,
         adminMode: adminMode
       }),
-    [model.schema, adjustRole, model.isOwned, user, adminMode]
+    [schema, adjustRole, isOwned, user, adminMode]
   );
 
-  const handleSetLocation = (newLocation: string) =>
-    setItemLocation({ itemID: model.itemID!, location: newLocation }, () => toast.success(information.moveComplete));
+  function navigateTab(tab: OssTabID) {
+    if (!schema) {
+      return;
+    }
+    const url = urls.oss_props({
+      id: schema.id,
+      tab: tab
+    });
+    router.push(url);
+  }
 
-  const share = useCallback(() => {
-    const currentRef = window.location.href;
-    const url = currentRef.includes('?') ? currentRef + '&share' : currentRef + '?share';
-    navigator.clipboard
-      .writeText(url)
-      .then(() => toast.success(information.linkReady))
-      .catch(console.error);
-  }, []);
-
-  const setOwner = (newOwner: UserID) =>
-    setItemOwner({ itemID: model.itemID!, owner: newOwner }, () => toast.success(information.changesSaved));
-
-  const setAccessPolicy = (newPolicy: AccessPolicy) =>
-    setItemAccessPolicy({ itemID: model.itemID!, policy: newPolicy }, () => toast.success(information.changesSaved));
-
-  const handleSetEditors = (newEditors: UserID[]) =>
-    setItemEditors({ itemID: model.itemID!, editors: newEditors }, () => toast.success(information.changesSaved));
-
-  const openOperationSchema = useCallback(
+  const navigateOperationSchema = useCallback(
     (target: OperationID) => {
-      const node = model.schema?.operationByID.get(target);
+      const node = schema.operationByID.get(target);
       if (!node?.result) {
         return;
       }
       router.push(urls.schema_props({ id: node.result, tab: RSTabID.CST_LIST }));
     },
-    [router, model]
+    [router, schema]
   );
 
-  const savePositions = useCallback(
-    (positions: IOperationPosition[], callback?: () => void) => {
-      model.savePositions({ positions: positions }, () => {
-        positions.forEach(item => {
-          const operation = model.schema?.operationByID.get(item.id);
-          if (operation) {
-            operation.position_x = item.position_x;
-            operation.position_y = item.position_y;
+  function deleteSchema() {
+    if (!schema || !window.confirm(prompts.deleteOSS)) {
+      return;
+    }
+    deleteItem(schema.id, () => {
+      toast.success(information.itemDestroyed);
+      router.push(urls.library);
+    });
+  }
+
+  function promptCreateOperation({ defaultX, defaultY, inputs, positions, callback }: ICreateOperationPrompt) {
+    showCreateOperation({
+      oss: schema,
+      onCreate: data => {
+        const target = calculateInsertPosition(schema, data.item_data.operation_type, data.arguments ?? [], positions, {
+          x: defaultX,
+          y: defaultY
+        });
+        data.positions = positions;
+        data.item_data.position_x = target.x;
+        data.item_data.position_y = target.y;
+        operationCreate({ itemID: schema.id, data }, operation => {
+          toast.success(information.newOperation(operation.alias));
+          if (callback) {
+            setTimeout(() => callback(operation.id), PARAMETER.refreshTimeout);
           }
         });
-        toast.success(information.changesSaved);
-        callback?.();
-      });
-    },
-    [model]
-  );
+      },
+      initialInputs: inputs
+    });
+  }
 
-  const handleCreateOperation = useCallback(
-    (data: IOperationCreateData) => {
-      const target = calculateInsertPosition(
-        model.schema!,
-        data.item_data.operation_type,
-        data.arguments,
-        positions,
-        insertPosition
-      );
-      data.positions = positions;
-      data.item_data.position_x = target.x;
-      data.item_data.position_y = target.y;
-      model.createOperation(data, operation => {
-        toast.success(information.newOperation(operation.alias));
-        if (createCallback) {
-          setTimeout(() => createCallback(operation.id), PARAMETER.refreshTimeout);
-        }
-      });
-    },
-    [model, positions, insertPosition, createCallback]
-  );
+  function canDelete(target: OperationID) {
+    const operation = schema.operationByID.get(target);
+    if (!operation) {
+      return false;
+    }
+    if (operation.operation_type === OperationType.INPUT) {
+      return true;
+    }
+    return schema.graph.expandOutputs([target]).length === 0;
+  }
 
-  const handleEditOperation = useCallback(
-    (data: IOperationUpdateData) => {
-      data.positions = positions;
-      model.updateOperation(data, () => toast.success(information.changesSaved));
-    },
-    [model, positions]
-  );
-
-  const canDelete = useCallback(
-    (target: OperationID) => {
-      if (!model.schema) {
-        return false;
+  function promptEditOperation(target: OperationID, positions: IOperationPosition[]) {
+    const operation = schema.operationByID.get(target);
+    if (!operation) {
+      return;
+    }
+    showEditOperation({
+      oss: schema,
+      target: operation,
+      onSubmit: data => {
+        data.positions = positions;
+        operationUpdate({ itemID: schema.id, data }, () => toast.success(information.changesSaved));
       }
-      const operation = model.schema.operationByID.get(target);
-      if (!operation) {
-        return false;
-      }
-      if (operation.operation_type === OperationType.INPUT) {
-        return true;
-      }
-      return model.schema.graph.expandOutputs([target]).length === 0;
-    },
-    [model]
-  );
+    });
+  }
 
-  const handleDeleteOperation = useCallback(
-    (targetID: OperationID, keepConstituents: boolean, deleteSchema: boolean) => {
-      const data: IOperationDeleteData = {
-        target: targetID,
-        positions: positions,
-        keep_constituents: keepConstituents,
-        delete_schema: deleteSchema
-      };
-      model.deleteOperation(data, () => toast.success(information.operationDestroyed));
-    },
-    [model, positions]
-  );
-
-  const createInput = useCallback(
-    (target: OperationID, positions: IOperationPosition[]) => {
-      const operation = model.schema?.operationByID.get(target);
-      if (!model.schema || !operation) {
-        return;
-      }
-      if (libraryItems.find(item => item.alias === operation.alias && item.location === model.schema!.location)) {
-        toast.error(errors.inputAlreadyExists);
-        return;
-      }
-      model.createInput({ target: target, positions: positions }, new_schema => {
-        toast.success(information.newLibraryItem);
-        router.push(urls.schema(new_schema.id));
-      });
-    },
-    [model, libraryItems, router]
-  );
-
-  const setTargetInput = useCallback(
-    (target: OperationID, newInput: LibraryItemID | undefined) => {
-      const data: IOperationSetInputData = {
-        target: target,
-        positions: positions,
-        input: newInput ?? null
-      };
-      model.setInput(data, () => toast.success(information.changesSaved));
-    },
-    [model, positions]
-  );
-
-  const handleRelocateConstituents = useCallback(
-    (data: ICstRelocateData) => {
-      if (
-        positions.every(item => {
-          const operation = model.schema!.operationByID.get(item.id)!;
-          return operation.position_x === item.position_x && operation.position_y === item.position_y;
-        })
-      ) {
-        model.relocateConstituents(data, () => toast.success(information.changesSaved));
-      } else {
-        model.savePositions({ positions: positions }, () =>
-          model.relocateConstituents(data, () => toast.success(information.changesSaved))
+  function promptDeleteOperation(target: OperationID, positions: IOperationPosition[]) {
+    const operation = schema.operationByID.get(target);
+    if (!operation) {
+      return;
+    }
+    showDeleteOperation({
+      target: operation,
+      onSubmit: (targetID, keepConstituents, deleteSchema) => {
+        operationDelete(
+          {
+            itemID: schema.id,
+            data: {
+              target: targetID,
+              positions: positions,
+              keep_constituents: keepConstituents,
+              delete_schema: deleteSchema
+            }
+          },
+          () => toast.success(information.operationDestroyed)
         );
       }
-    },
-    [model, positions]
-  );
+    });
+  }
 
-  const executeOperation = useCallback(
-    (target: OperationID, positions: IOperationPosition[]) => {
-      const data = {
-        target: target,
-        positions: positions
-      };
-      model.executeOperation(data, () => toast.success(information.operationExecuted));
-    },
-    [model]
-  );
-
-  const promptEditors = () => showEditEditors({ editors: model.schema?.editors ?? [], setEditors: handleSetEditors });
-
-  const promptLocation = () =>
-    showEditLocation({ initial: model.schema?.location ?? '', onChangeLocation: handleSetLocation });
-
-  const promptCreateOperation = useCallback(
-    ({ defaultX, defaultY, inputs, positions, callback }: ICreateOperationPrompt) => {
-      if (!model.schema) {
-        return;
+  function promptEditInput(target: OperationID, positions: IOperationPosition[]) {
+    const operation = schema.operationByID.get(target);
+    if (!operation) {
+      return;
+    }
+    showEditInput({
+      oss: schema,
+      target: operation,
+      onSubmit: (target, newInput) => {
+        inputUpdate(
+          {
+            itemID: schema.id,
+            data: {
+              target: target,
+              positions: positions,
+              input: newInput ?? null
+            }
+          },
+          () => toast.success(information.changesSaved)
+        );
       }
-      setInsertPosition({ x: defaultX, y: defaultY });
-      setPositions(positions);
-      setCreateCallback(() => callback);
-      showCreateOperation({ oss: model.schema, onCreate: handleCreateOperation, initialInputs: inputs });
-    },
-    [model.schema, showCreateOperation, handleCreateOperation]
-  );
+    });
+  }
 
-  const promptEditOperation = useCallback(
-    (target: OperationID, positions: IOperationPosition[]) => {
-      const operation = model.schema?.operationByID.get(target);
-      if (!model.schema || !operation) {
-        return;
+  function promptRelocateConstituents(target: OperationID | undefined, positions: IOperationPosition[]) {
+    const operation = target ? schema.operationByID.get(target) : undefined;
+    showRelocateConstituents({
+      oss: schema,
+      initialTarget: operation,
+      onSubmit: data => {
+        if (
+          positions.every(item => {
+            const operation = schema.operationByID.get(item.id)!;
+            return operation.position_x === item.position_x && operation.position_y === item.position_y;
+          })
+        ) {
+          relocateConstituents({ itemID: schema.id, data }, () => toast.success(information.changesSaved));
+        } else {
+          updatePositions(
+            {
+              itemID: schema.id, //
+              positions: positions
+            },
+            () => relocateConstituents({ itemID: schema.id, data }, () => toast.success(information.changesSaved))
+          );
+        }
       }
-      setPositions(positions);
-      showEditOperation({ oss: model.schema, target: operation, onSubmit: handleEditOperation });
-    },
-    [model.schema, showEditOperation, handleEditOperation]
-  );
-
-  const promptDeleteOperation = useCallback(
-    (target: OperationID, positions: IOperationPosition[]) => {
-      const operation = model.schema?.operationByID.get(target);
-      if (!model.schema || !operation) {
-        return;
-      }
-      setPositions(positions);
-      showDeleteOperation({ target: operation, onSubmit: handleDeleteOperation });
-    },
-    [model.schema, showDeleteOperation, handleDeleteOperation]
-  );
-
-  const promptEditInput = useCallback(
-    (target: OperationID, positions: IOperationPosition[]) => {
-      const operation = model.schema?.operationByID.get(target);
-      if (!model.schema || !operation) {
-        return;
-      }
-      setPositions(positions);
-      showEditInput({ oss: model.schema, target: operation, onSubmit: setTargetInput });
-    },
-    [model.schema, showEditInput, setTargetInput]
-  );
-
-  const promptRelocateConstituents = useCallback(
-    (target: OperationID | undefined, positions: IOperationPosition[]) => {
-      if (!model.schema) {
-        return;
-      }
-      const operation = target ? model.schema?.operationByID.get(target) : undefined;
-      setPositions(positions);
-      showRelocateConstituents({ oss: model.schema, initialTarget: operation, onSubmit: handleRelocateConstituents });
-    },
-    [model.schema, showRelocateConstituents, handleRelocateConstituents]
-  );
+    });
+  }
 
   return (
     <OssEditContext
       value={{
-        schema: model.schema,
+        schema,
         selected,
 
+        navigateTab,
+
+        deleteSchema,
+
         showTooltip,
         setShowTooltip,
 
         isOwned,
         isMutable,
-        isProcessing: model.processing,
         isAttachedToOSS: false,
 
-        setOwner,
-        setAccessPolicy,
-        promptEditors,
-        promptLocation,
-
-        share,
         setSelected,
 
-        openOperationSchema,
-        savePositions,
+        navigateOperationSchema,
         promptCreateOperation,
         canDelete,
         promptDeleteOperation,
-        createInput,
         promptEditInput,
         promptEditOperation,
-        executeOperation,
         promptRelocateConstituents
       }}
     >
diff --git a/rsconcept/frontend/src/pages/OssPage/OssPage.tsx b/rsconcept/frontend/src/pages/OssPage/OssPage.tsx
index 7375cdda..999a70e8 100644
--- a/rsconcept/frontend/src/pages/OssPage/OssPage.tsx
+++ b/rsconcept/frontend/src/pages/OssPage/OssPage.tsx
@@ -1,23 +1,69 @@
 'use client';
 
-import { Suspense } from 'react';
+import axios from 'axios';
+import { ErrorBoundary } from 'react-error-boundary';
 import { useParams } from 'react-router';
 
-import Loader from '@/components/ui/Loader';
-import { OssState } from '@/pages/OssPage/OssContext';
+import { useBlockNavigation, useConceptNavigation } from '@/app/Navigation/NavigationContext';
+import { urls } from '@/app/urls';
+import InfoError, { ErrorData } from '@/components/info/InfoError';
+import TextURL from '@/components/ui/TextURL';
+import { useModificationStore } from '@/stores/modification';
 
+import { OssEditState } from './OssEditContext';
 import OssTabs from './OssTabs';
 
 function OssPage() {
+  const router = useConceptNavigation();
   const params = useParams();
   const itemID = params.id ? Number(params.id) : undefined;
+
+  const { isModified } = useModificationStore();
+  useBlockNavigation(isModified);
+
+  // useBlockNavigation(
+  //   isModified &&
+  //     schema !== undefined &&
+  //     !!user &&
+  //     (user.is_staff || user.id == schema.owner || schema.editors.includes(user.id))
+  // );
+
+  if (!itemID) {
+    router.replace(urls.page404);
+    return null;
+  }
+
   return (
-    <Suspense fallback={<Loader />}>
-      <OssState itemID={itemID}>
+    <ErrorBoundary FallbackComponent={ProcessError}>
+      <OssEditState itemID={itemID}>
         <OssTabs />
-      </OssState>
-    </Suspense>
+      </OssEditState>
+    </ErrorBoundary>
   );
 }
 
 export default OssPage;
+
+// ====== Internals =========
+function ProcessError({ error }: { error: ErrorData }): React.ReactElement {
+  if (axios.isAxiosError(error) && error.response) {
+    if (error.response.status === 404) {
+      return (
+        <div className='flex flex-col items-center p-2 mx-auto'>
+          <p>{`Операционная схема с указанным идентификатором отсутствует`}</p>
+          <div className='flex justify-center'>
+            <TextURL text='Библиотека' href='/library' />
+          </div>
+        </div>
+      );
+    } else if (error.response.status === 403) {
+      return (
+        <div className='flex flex-col items-center p-2 mx-auto'>
+          <p>Владелец ограничил доступ к данной схеме</p>
+          <TextURL text='Библиотека' href='/library' />
+        </div>
+      );
+    }
+  }
+  return <InfoError error={error} />;
+}
diff --git a/rsconcept/frontend/src/pages/OssPage/OssTabs.tsx b/rsconcept/frontend/src/pages/OssPage/OssTabs.tsx
index 5f352cae..e0bbc9c6 100644
--- a/rsconcept/frontend/src/pages/OssPage/OssTabs.tsx
+++ b/rsconcept/frontend/src/pages/OssPage/OssTabs.tsx
@@ -1,79 +1,46 @@
 'use client';
 
-import axios from 'axios';
 import clsx from 'clsx';
-import { useEffect, useState } from 'react';
+import { useEffect } from 'react';
 import { TabList, TabPanel, Tabs } from 'react-tabs';
-import { toast } from 'react-toastify';
 
-import { useBlockNavigation, useConceptNavigation } from '@/app/Navigation/NavigationContext';
-import { urls } from '@/app/urls';
-import { useAuth } from '@/backend/auth/useAuth';
-import { useDeleteItem } from '@/backend/library/useDeleteItem';
-import InfoError, { ErrorData } from '@/components/info/InfoError';
-import Loader from '@/components/ui/Loader';
+import { useConceptNavigation } from '@/app/Navigation/NavigationContext';
 import Overlay from '@/components/ui/Overlay';
 import TabLabel from '@/components/ui/TabLabel';
-import TextURL from '@/components/ui/TextURL';
 import useQueryStrings from '@/hooks/useQueryStrings';
-import { OperationID } from '@/models/oss';
 import { useAppLayoutStore } from '@/stores/appLayout';
-import { information, prompts } from '@/utils/labels';
+import { useModificationStore } from '@/stores/modification';
 
 import EditorRSForm from './EditorOssCard';
 import EditorTermGraph from './EditorOssGraph';
 import MenuOssTabs from './MenuOssTabs';
-import { OssEditState } from './OssEditContext';
-
-export enum OssTabID {
-  CARD = 0,
-  GRAPH = 1
-}
+import { OssTabID, useOssEdit } from './OssEditContext';
 
 function OssTabs() {
   const router = useConceptNavigation();
   const query = useQueryStrings();
   const activeTab = query.get('tab') ? (Number(query.get('tab')) as OssTabID) : OssTabID.GRAPH;
-  const { user } = useAuth();
-  const { deleteItem } = useDeleteItem();
+
+  const { schema, navigateTab } = useOssEdit();
 
   const hideFooter = useAppLayoutStore(state => state.hideFooter);
-  const { schema, loading, loadingError: errorLoading } = useOSSControl();
 
-  const [isModified, setIsModified] = useState(false);
-  const [selected, setSelected] = useState<OperationID[]>([]);
-  useBlockNavigation(
-    isModified &&
-      schema !== undefined &&
-      !!user &&
-      (user.is_staff || user.id == schema.owner || schema.editors.includes(user.id))
-  );
+  const { setIsModified } = useModificationStore();
+
+  useEffect(() => setIsModified(false), [setIsModified]);
 
   useEffect(() => {
-    if (schema) {
-      const oldTitle = document.title;
-      document.title = schema.title;
-      return () => {
-        document.title = oldTitle;
-      };
-    }
-  }, [schema, schema?.title]);
+    const oldTitle = document.title;
+    document.title = schema.title;
+    return () => {
+      document.title = oldTitle;
+    };
+  }, [schema.title]);
 
   useEffect(() => {
     hideFooter(activeTab === OssTabID.GRAPH);
   }, [activeTab, hideFooter]);
 
-  function navigateTab(tab: OssTabID) {
-    if (!schema) {
-      return;
-    }
-    const url = urls.oss_props({
-      id: schema.id,
-      tab: tab
-    });
-    router.push(url);
-  }
-
   function onSelectTab(index: number, last: number, event: Event) {
     if (last === index) {
       return;
@@ -93,78 +60,34 @@ function OssTabs() {
     navigateTab(index);
   }
 
-  function onDestroySchema() {
-    if (!schema || !window.confirm(prompts.deleteOSS)) {
-      return;
-    }
-    deleteItem(schema.id, () => {
-      toast.success(information.itemDestroyed);
-      router.push(urls.library);
-    });
-  }
-
   return (
-    <OssEditState selected={selected} setSelected={setSelected}>
-      {loading ? <Loader /> : null}
-      {errorLoading ? <ProcessError error={errorLoading} /> : null}
-      {schema && !loading ? (
-        <Tabs
-          selectedIndex={activeTab}
-          onSelect={onSelectTab}
-          defaultFocus
-          selectedTabClassName='clr-selected'
-          className='flex flex-col mx-auto min-w-fit'
-        >
-          <Overlay position='top-0 right-1/2 translate-x-1/2' layer='z-sticky'>
-            <TabList className={clsx('w-fit', 'flex items-stretch', 'border-b-2 border-x-2 divide-x-2', 'bg-prim-200')}>
-              <MenuOssTabs onDestroy={onDestroySchema} />
+    <Tabs
+      selectedIndex={activeTab}
+      onSelect={onSelectTab}
+      defaultFocus
+      selectedTabClassName='clr-selected'
+      className='flex flex-col mx-auto min-w-fit'
+    >
+      <Overlay position='top-0 right-1/2 translate-x-1/2' layer='z-sticky'>
+        <TabList className={clsx('w-fit', 'flex items-stretch', 'border-b-2 border-x-2 divide-x-2', 'bg-prim-200')}>
+          <MenuOssTabs />
 
-              <TabLabel label='Карточка' title={schema.title ?? ''} />
-              <TabLabel label='Граф' />
-            </TabList>
-          </Overlay>
+          <TabLabel label='Карточка' title={schema.title ?? ''} />
+          <TabLabel label='Граф' />
+        </TabList>
+      </Overlay>
 
-          <div className='overflow-x-hidden'>
-            <TabPanel>
-              <EditorRSForm
-                isModified={isModified} //
-                setIsModified={setIsModified}
-                onDestroy={onDestroySchema}
-              />
-            </TabPanel>
+      <div className='overflow-x-hidden'>
+        <TabPanel>
+          <EditorRSForm />
+        </TabPanel>
 
-            <TabPanel>
-              <EditorTermGraph isModified={isModified} setIsModified={setIsModified} />
-            </TabPanel>
-          </div>
-        </Tabs>
-      ) : null}
-    </OssEditState>
+        <TabPanel>
+          <EditorTermGraph />
+        </TabPanel>
+      </div>
+    </Tabs>
   );
 }
 
 export default OssTabs;
-
-// ====== Internals =========
-function ProcessError({ error }: { error: ErrorData }): React.ReactElement {
-  if (axios.isAxiosError(error) && error.response) {
-    if (error.response.status === 404) {
-      return (
-        <div className='flex flex-col items-center p-2 mx-auto'>
-          <p>{`Операционная схема с указанным идентификатором отсутствует`}</p>
-          <div className='flex justify-center'>
-            <TextURL text='Библиотека' href='/library' />
-          </div>
-        </div>
-      );
-    } else if (error.response.status === 403) {
-      return (
-        <div className='flex flex-col items-center p-2 mx-auto'>
-          <p>Владелец ограничил доступ к данной схеме</p>
-          <TextURL text='Библиотека' href='/library' />
-        </div>
-      );
-    }
-  }
-  return <InfoError error={error} />;
-}
diff --git a/rsconcept/frontend/src/pages/RSFormPage/EditorConstituenta/ControlsOverlay.tsx b/rsconcept/frontend/src/pages/RSFormPage/EditorConstituenta/ControlsOverlay.tsx
deleted file mode 100644
index 50d94c71..00000000
--- a/rsconcept/frontend/src/pages/RSFormPage/EditorConstituenta/ControlsOverlay.tsx
+++ /dev/null
@@ -1,55 +0,0 @@
-import clsx from 'clsx';
-
-import { IconEdit } from '@/components/Icons';
-import MiniButton from '@/components/ui/MiniButton';
-import Overlay from '@/components/ui/Overlay';
-import { IConstituenta } from '@/models/rsform';
-import { tooltips } from '@/utils/labels';
-
-interface ControlsOverlayProps {
-  constituenta: IConstituenta;
-  disabled: boolean;
-  modified: boolean;
-  processing: boolean;
-
-  onRename: () => void;
-  onEditTerm: () => void;
-}
-
-function ControlsOverlay({ constituenta, disabled, modified, processing, onRename, onEditTerm }: ControlsOverlayProps) {
-  return (
-    <Overlay position='top-1 left-[4.7rem]' className='flex select-none'>
-      {!disabled || processing ? (
-        <MiniButton
-          title={modified ? tooltips.unsaved : `Редактировать словоформы термина`}
-          noHover
-          onClick={onEditTerm}
-          icon={<IconEdit size='1rem' className='icon-primary' />}
-          disabled={modified}
-        />
-      ) : null}
-      <div
-        className={clsx(
-          'pt-1 sm:pl-[1.375rem] pl-1', //
-          'text-sm font-medium whitespace-nowrap',
-          'select-text cursor-default',
-          disabled && !processing && 'pl-[1.6rem] sm:pl-[2.8rem]'
-        )}
-      >
-        <span>Имя </span>
-        <span className='ml-1'>{constituenta?.alias ?? ''}</span>
-      </div>
-      {!disabled || processing ? (
-        <MiniButton
-          noHover
-          title={modified ? tooltips.unsaved : 'Переименовать конституенту'}
-          onClick={onRename}
-          icon={<IconEdit size='1rem' className='icon-primary' />}
-          disabled={modified}
-        />
-      ) : null}
-    </Overlay>
-  );
-}
-
-export default ControlsOverlay;
diff --git a/rsconcept/frontend/src/pages/RSFormPage/EditorConstituenta/EditorConstituenta.tsx b/rsconcept/frontend/src/pages/RSFormPage/EditorConstituenta/EditorConstituenta.tsx
index f16e4b61..586e285f 100644
--- a/rsconcept/frontend/src/pages/RSFormPage/EditorConstituenta/EditorConstituenta.tsx
+++ b/rsconcept/frontend/src/pages/RSFormPage/EditorConstituenta/EditorConstituenta.tsx
@@ -2,12 +2,18 @@
 
 import clsx from 'clsx';
 import { useState } from 'react';
+import { toast } from 'react-toastify';
 
+import { useCstUpdate } from '@/backend/rsform/useCstUpdate';
+import { useIsProcessingRSForm } from '@/backend/rsform/useIsProcessingRSForm';
 import useWindowSize from '@/hooks/useWindowSize';
-import { ConstituentaID, IConstituenta } from '@/models/rsform';
 import { useMainHeight } from '@/stores/appLayout';
+import { useDialogsStore } from '@/stores/dialogs';
+import { useModificationStore } from '@/stores/modification';
 import { usePreferencesStore } from '@/stores/preferences';
 import { globals } from '@/utils/constants';
+import { information } from '@/utils/labels';
+import { promptUnsaved } from '@/utils/utils';
 
 import { useRSEdit } from '../RSEditContext';
 import ViewConstituents from '../ViewConstituents';
@@ -17,23 +23,20 @@ import ToolbarConstituenta from './ToolbarConstituenta';
 // Threshold window width to switch layout.
 const SIDELIST_LAYOUT_THRESHOLD = 1000; // px
 
-interface EditorConstituentaProps {
-  activeCst?: IConstituenta;
-  isModified: boolean;
-  setIsModified: (newValue: boolean) => void;
-  onOpenEdit: (cstID: ConstituentaID) => void;
-}
-
-function EditorConstituenta({ activeCst, isModified, setIsModified, onOpenEdit }: EditorConstituentaProps) {
+function EditorConstituenta() {
   const controller = useRSEdit();
   const windowSize = useWindowSize();
   const mainHeight = useMainHeight();
 
   const showList = usePreferencesStore(state => state.showCstSideList);
+  const showEditTerm = useDialogsStore(state => state.showEditWordForms);
+  const { cstUpdate } = useCstUpdate();
+  const { isModified } = useModificationStore();
 
   const [toggleReset, setToggleReset] = useState(false);
 
-  const disabled = !activeCst || !controller.isContentEditable || controller.isProcessing;
+  const isProcessing = useIsProcessingRSForm();
+  const disabled = !controller.activeCst || !controller.isContentEditable || isProcessing;
   const isNarrow = !!windowSize.width && windowSize.width <= SIDELIST_LAYOUT_THRESHOLD;
 
   function handleInput(event: React.KeyboardEvent<HTMLDivElement>) {
@@ -56,6 +59,29 @@ function EditorConstituenta({ activeCst, isModified, setIsModified, onOpenEdit }
     }
   }
 
+  function handleEditTermForms() {
+    if (!controller.activeCst) {
+      return;
+    }
+    if (isModified && !promptUnsaved()) {
+      return;
+    }
+    showEditTerm({
+      target: controller.activeCst,
+      onSave: forms =>
+        cstUpdate(
+          {
+            itemID: controller.schema.id,
+            data: {
+              target: controller.activeCst!.id,
+              item_data: { term_forms: forms }
+            }
+          },
+          () => toast.success(information.changesSaved)
+        )
+    });
+  }
+
   function initiateSubmit() {
     const element = document.getElementById(globals.constituenta_editor) as HTMLFormElement;
     if (element) {
@@ -76,9 +102,8 @@ function EditorConstituenta({ activeCst, isModified, setIsModified, onOpenEdit }
   return (
     <>
       <ToolbarConstituenta
-        activeCst={activeCst}
+        activeCst={controller.activeCst}
         disabled={disabled}
-        modified={isModified}
         onSubmit={initiateSubmit}
         onReset={() => setToggleReset(prev => !prev)}
       />
@@ -97,21 +122,13 @@ function EditorConstituenta({ activeCst, isModified, setIsModified, onOpenEdit }
         <FormConstituenta
           disabled={disabled}
           id={globals.constituenta_editor}
-          state={activeCst}
-          isModified={isModified}
           toggleReset={toggleReset}
-          setIsModified={setIsModified}
-          onEditTerm={controller.editTermForms}
-          onRename={controller.renameCst}
-          onOpenEdit={onOpenEdit}
+          onEditTerm={handleEditTermForms}
         />
         <ViewConstituents
           isMounted={showList}
-          schema={controller.schema}
-          expression={activeCst?.definition_formal ?? ''}
+          expression={controller.activeCst?.definition_formal ?? ''}
           isBottom={isNarrow}
-          activeCst={activeCst}
-          onOpenEdit={onOpenEdit}
         />
       </div>
     </>
diff --git a/rsconcept/frontend/src/pages/RSFormPage/EditorConstituenta/EditorControls.tsx b/rsconcept/frontend/src/pages/RSFormPage/EditorConstituenta/EditorControls.tsx
new file mode 100644
index 00000000..98e9a207
--- /dev/null
+++ b/rsconcept/frontend/src/pages/RSFormPage/EditorConstituenta/EditorControls.tsx
@@ -0,0 +1,84 @@
+import clsx from 'clsx';
+import { toast } from 'react-toastify';
+
+import { ICstRenameDTO } from '@/backend/rsform/api';
+import { useCstRename } from '@/backend/rsform/useCstRename';
+import { useIsProcessingRSForm } from '@/backend/rsform/useIsProcessingRSForm';
+import { IconEdit } from '@/components/Icons';
+import MiniButton from '@/components/ui/MiniButton';
+import Overlay from '@/components/ui/Overlay';
+import { IConstituenta } from '@/models/rsform';
+import { useDialogsStore } from '@/stores/dialogs';
+import { useModificationStore } from '@/stores/modification';
+import { information, tooltips } from '@/utils/labels';
+
+import { useRSEdit } from '../RSEditContext';
+
+interface EditorControlsProps {
+  constituenta: IConstituenta;
+  disabled: boolean;
+
+  onEditTerm: () => void;
+}
+
+function EditorControls({ constituenta, disabled, onEditTerm }: EditorControlsProps) {
+  const { schema } = useRSEdit();
+  const { isModified } = useModificationStore();
+  const isProcessing = useIsProcessingRSForm();
+
+  const showRenameCst = useDialogsStore(state => state.showRenameCst);
+  const { cstRename } = useCstRename();
+
+  function handleRenameCst() {
+    const initialData: ICstRenameDTO = {
+      target: constituenta.id,
+      alias: constituenta.alias,
+      cst_type: constituenta.cst_type
+    };
+    showRenameCst({
+      schema: schema,
+      initial: initialData,
+      allowChangeType: !constituenta.is_inherited,
+      onRename: data => {
+        const oldAlias = initialData.alias;
+        cstRename({ itemID: schema.id, data }, () => toast.success(information.renameComplete(oldAlias, data.alias)));
+      }
+    });
+  }
+
+  return (
+    <Overlay position='top-1 left-[4.7rem]' className='flex select-none'>
+      {!disabled || isProcessing ? (
+        <MiniButton
+          title={isModified ? tooltips.unsaved : `Редактировать словоформы термина`}
+          noHover
+          onClick={onEditTerm}
+          icon={<IconEdit size='1rem' className='icon-primary' />}
+          disabled={isModified}
+        />
+      ) : null}
+      <div
+        className={clsx(
+          'pt-1 sm:pl-[1.375rem] pl-1', //
+          'text-sm font-medium whitespace-nowrap',
+          'select-text cursor-default',
+          disabled && !isProcessing && 'pl-[1.6rem] sm:pl-[2.8rem]'
+        )}
+      >
+        <span>Имя </span>
+        <span className='ml-1'>{constituenta?.alias ?? ''}</span>
+      </div>
+      {!disabled || isProcessing ? (
+        <MiniButton
+          noHover
+          title={isModified ? tooltips.unsaved : 'Переименовать конституенту'}
+          onClick={handleRenameCst}
+          icon={<IconEdit size='1rem' className='icon-primary' />}
+          disabled={isModified}
+        />
+      ) : null}
+    </Overlay>
+  );
+}
+
+export default EditorControls;
diff --git a/rsconcept/frontend/src/pages/RSFormPage/EditorConstituenta/FormConstituenta.tsx b/rsconcept/frontend/src/pages/RSFormPage/EditorConstituenta/FormConstituenta.tsx
index ed25b866..7c07e033 100644
--- a/rsconcept/frontend/src/pages/RSFormPage/EditorConstituenta/FormConstituenta.tsx
+++ b/rsconcept/frontend/src/pages/RSFormPage/EditorConstituenta/FormConstituenta.tsx
@@ -6,6 +6,7 @@ import { toast } from 'react-toastify';
 
 import { ICstUpdateDTO } from '@/backend/rsform/api';
 import { useCstUpdate } from '@/backend/rsform/useCstUpdate';
+import { useIsProcessingRSForm } from '@/backend/rsform/useIsProcessingRSForm';
 import { IconChild, IconPredecessor, IconSave } from '@/components/Icons';
 import { CProps } from '@/components/props';
 import RefsInput from '@/components/RefsInput';
@@ -13,27 +14,22 @@ import Indicator from '@/components/ui/Indicator';
 import Overlay from '@/components/ui/Overlay';
 import SubmitButton from '@/components/ui/SubmitButton';
 import TextArea from '@/components/ui/TextArea';
-import { ConstituentaID, CstType, IConstituenta } from '@/models/rsform';
+import { ConstituentaID, CstType } from '@/models/rsform';
 import { isBaseSet, isBasicConcept, isFunctional } from '@/models/rsformAPI';
 import { IExpressionParse, ParsingStatus } from '@/models/rslang';
 import { useDialogsStore } from '@/stores/dialogs';
+import { useModificationStore } from '@/stores/modification';
 import { errors, information, labelCstTypification } from '@/utils/labels';
 
 import EditorRSExpression from '../EditorRSExpression';
 import { useRSEdit } from '../RSEditContext';
-import ControlsOverlay from './ControlsOverlay';
+import EditorControls from './EditorControls';
 
 interface FormConstituentaProps {
-  disabled: boolean;
-
   id?: string;
-  state?: IConstituenta;
-
-  isModified: boolean;
+  disabled: boolean;
   toggleReset: boolean;
-  setIsModified: (newValue: boolean) => void;
 
-  onRename: () => void;
   onEditTerm: () => void;
   onOpenEdit?: (cstID: ConstituentaID) => void;
 }
@@ -41,72 +37,68 @@ interface FormConstituentaProps {
 function FormConstituenta({
   disabled,
   id,
-  state,
-
-  isModified,
-  setIsModified,
 
   toggleReset,
-  onRename,
   onEditTerm,
   onOpenEdit
 }: FormConstituentaProps) {
   const { cstUpdate } = useCstUpdate();
-  const controller = useRSEdit();
-  const schema = controller.schema;
+  const { schema, activeCst } = useRSEdit();
+  const { isModified, setIsModified } = useModificationStore();
+  const isProcessing = useIsProcessingRSForm();
 
-  const [term, setTerm] = useState(state?.term_raw ?? '');
-  const [textDefinition, setTextDefinition] = useState(state?.definition_raw ?? '');
-  const [expression, setExpression] = useState(state?.definition_formal ?? '');
-  const [convention, setConvention] = useState(state?.convention ?? '');
+  const [term, setTerm] = useState(activeCst?.term_raw ?? '');
+  const [textDefinition, setTextDefinition] = useState(activeCst?.definition_raw ?? '');
+  const [expression, setExpression] = useState(activeCst?.definition_formal ?? '');
+  const [convention, setConvention] = useState(activeCst?.convention ?? '');
   const [typification, setTypification] = useState('N/A');
   const [localParse, setLocalParse] = useState<IExpressionParse | undefined>(undefined);
-  const typeInfo = state
+  const typeInfo = activeCst
     ? {
-        alias: state.alias,
-        result: localParse ? localParse.typification : state.parse.typification,
-        args: localParse ? localParse.args : state.parse.args
+        alias: activeCst.alias,
+        result: localParse ? localParse.typification : activeCst.parse.typification,
+        args: localParse ? localParse.args : activeCst.parse.args
       }
     : undefined;
 
   const [forceComment, setForceComment] = useState(false);
 
-  const isBasic = !!state && isBasicConcept(state.cst_type);
-  const isElementary = !!state && isBaseSet(state.cst_type);
-  const showConvention = !state || !!state.convention || forceComment || isBasic;
+  const isBasic = !!activeCst && isBasicConcept(activeCst.cst_type);
+  const isElementary = !!activeCst && isBaseSet(activeCst.cst_type);
+  const showConvention = !activeCst || !!activeCst.convention || forceComment || isBasic;
 
-  const showTypification = useDialogsStore(state => state.showShowTypeGraph);
+  const showTypification = useDialogsStore(activeCst => activeCst.showShowTypeGraph);
 
   useEffect(() => {
-    if (state) {
-      setConvention(state.convention);
-      setTerm(state.term_raw);
-      setTextDefinition(state.definition_raw);
-      setExpression(state.definition_formal);
-      setTypification(state ? labelCstTypification(state) : 'N/A');
+    if (activeCst) {
+      setConvention(activeCst.convention);
+      setTerm(activeCst.term_raw);
+      setTextDefinition(activeCst.definition_raw);
+      setExpression(activeCst.definition_formal);
+      setTypification(activeCst ? labelCstTypification(activeCst) : 'N/A');
       setForceComment(false);
       setLocalParse(undefined);
     }
-  }, [state, schema, toggleReset, setIsModified]);
+  }, [activeCst, schema, toggleReset, setIsModified]);
 
   useLayoutEffect(() => {
-    if (!state) {
+    if (!activeCst) {
       setIsModified(false);
       return;
     }
     setIsModified(
-      state.term_raw !== term ||
-        state.definition_raw !== textDefinition ||
-        state.convention !== convention ||
-        state.definition_formal !== expression
+      activeCst.term_raw !== term ||
+        activeCst.definition_raw !== textDefinition ||
+        activeCst.convention !== convention ||
+        activeCst.definition_formal !== expression
     );
     return () => setIsModified(false);
   }, [
-    state,
-    state?.term_raw,
-    state?.definition_formal,
-    state?.definition_raw,
-    state?.convention,
+    activeCst,
+    activeCst?.term_raw,
+    activeCst?.definition_formal,
+    activeCst?.definition_raw,
+    activeCst?.convention,
     term,
     textDefinition,
     expression,
@@ -118,23 +110,23 @@ function FormConstituenta({
     if (event) {
       event.preventDefault();
     }
-    if (!state || controller.isProcessing || !schema) {
+    if (!activeCst || isProcessing || !schema) {
       return;
     }
     const data: ICstUpdateDTO = {
-      target: state.id,
+      target: activeCst.id,
       item_data: {
-        term_raw: state.term_raw !== term ? term : undefined,
-        definition_formal: state.definition_formal !== expression ? expression : undefined,
-        definition_raw: state.definition_raw !== textDefinition ? textDefinition : undefined,
-        convention: state.convention !== convention ? convention : undefined
+        term_raw: activeCst.term_raw !== term ? term : undefined,
+        definition_formal: activeCst.definition_formal !== expression ? expression : undefined,
+        definition_raw: activeCst.definition_raw !== textDefinition ? textDefinition : undefined,
+        convention: activeCst.convention !== convention ? convention : undefined
       }
     };
     cstUpdate({ itemID: schema.id, data }, () => toast.success(information.changesSaved));
   }
 
   function handleTypeGraph(event: CProps.EventMouse) {
-    if (!state || (localParse && !localParse.parseResult) || state.parse.status !== ParsingStatus.VERIFIED) {
+    if (!activeCst || (localParse && !localParse.parseResult) || activeCst.parse.status !== ParsingStatus.VERIFIED) {
       toast.error(errors.typeStructureFailed);
       return;
     }
@@ -145,16 +137,7 @@ function FormConstituenta({
 
   return (
     <div className='mx-0 md:mx-auto pt-[2rem] xs:pt-0'>
-      {state ? (
-        <ControlsOverlay
-          disabled={disabled}
-          modified={isModified}
-          processing={controller.isProcessing}
-          constituenta={state}
-          onEditTerm={onEditTerm}
-          onRename={onRename}
-        />
-      ) : null}
+      {activeCst ? <EditorControls disabled={disabled} constituenta={activeCst} onEditTerm={onEditTerm} /> : null}
       <form id={id} className={clsx('cc-column', 'mt-1 md:w-[48.8rem] shrink-0', 'px-6 py-1')} onSubmit={handleSubmit}>
         <RefsInput
           key='cst_term'
@@ -165,12 +148,12 @@ function FormConstituenta({
           schema={schema}
           onOpenEdit={onOpenEdit}
           value={term}
-          initialValue={state?.term_raw ?? ''}
-          resolved={state?.term_resolved ?? 'Конституента не выбрана'}
+          initialValue={activeCst?.term_raw ?? ''}
+          resolved={activeCst?.term_resolved ?? 'Конституента не выбрана'}
           disabled={disabled}
           onChange={newValue => setTerm(newValue)}
         />
-        {state ? (
+        {activeCst ? (
           <TextArea
             id='cst_typification'
             fitContent
@@ -184,24 +167,26 @@ function FormConstituenta({
             colors='bg-transparent clr-text-default cursor-default'
           />
         ) : null}
-        {state ? (
+        {activeCst ? (
           <>
-            {!!state.definition_formal || !isElementary ? (
+            {!!activeCst.definition_formal || !isElementary ? (
               <EditorRSExpression
                 id='cst_expression'
                 label={
-                  state.cst_type === CstType.STRUCTURED
+                  activeCst.cst_type === CstType.STRUCTURED
                     ? 'Область определения'
-                    : isFunctional(state.cst_type)
+                    : isFunctional(activeCst.cst_type)
                     ? 'Определение функции'
                     : 'Формальное определение'
                 }
                 placeholder={
-                  state.cst_type !== CstType.STRUCTURED ? 'Родоструктурное выражение' : 'Типизация родовой структуры'
+                  activeCst.cst_type !== CstType.STRUCTURED
+                    ? 'Родоструктурное выражение'
+                    : 'Типизация родовой структуры'
                 }
                 value={expression}
-                activeCst={state}
-                disabled={disabled || state.is_inherited}
+                activeCst={activeCst}
+                disabled={disabled || activeCst.is_inherited}
                 toggleReset={toggleReset}
                 onChangeExpression={newValue => setExpression(newValue)}
                 onChangeTypification={setTypification}
@@ -210,7 +195,7 @@ function FormConstituenta({
                 onShowTypeGraph={handleTypeGraph}
               />
             ) : null}
-            {!!state.definition_raw || !isElementary ? (
+            {!!activeCst.definition_raw || !isElementary ? (
               <RefsInput
                 id='cst_definition'
                 label='Текстовое определение'
@@ -220,8 +205,8 @@ function FormConstituenta({
                 schema={schema}
                 onOpenEdit={onOpenEdit}
                 value={textDefinition}
-                initialValue={state.definition_raw}
-                resolved={state.definition_resolved}
+                initialValue={activeCst.definition_raw}
+                resolved={activeCst.definition_resolved}
                 disabled={disabled}
                 onChange={newValue => setTextDefinition(newValue)}
               />
@@ -236,12 +221,12 @@ function FormConstituenta({
                 label={isBasic ? 'Конвенция' : 'Комментарий'}
                 placeholder={isBasic ? 'Договоренность об интерпретации' : 'Пояснение разработчика'}
                 value={convention}
-                disabled={disabled || (isBasic && state.is_inherited)}
+                disabled={disabled || (isBasic && activeCst.is_inherited)}
                 onChange={event => setConvention(event.target.value)}
               />
             ) : null}
 
-            {!showConvention && (!disabled || controller.isProcessing) ? (
+            {!showConvention && (!disabled || isProcessing) ? (
               <button
                 key='cst_disable_comment'
                 id='cst_disable_comment'
@@ -254,7 +239,7 @@ function FormConstituenta({
               </button>
             ) : null}
 
-            {!disabled || controller.isProcessing ? (
+            {!disabled || isProcessing ? (
               <div className='mx-auto flex'>
                 <SubmitButton
                   key='cst_form_submit'
@@ -264,13 +249,13 @@ function FormConstituenta({
                   icon={<IconSave size='1.25rem' />}
                 />
                 <Overlay position='top-[0.1rem] left-[0.4rem]' className='cc-icons'>
-                  {state.has_inherited_children && !state.is_inherited ? (
+                  {activeCst.has_inherited_children && !activeCst.is_inherited ? (
                     <Indicator
                       icon={<IconPredecessor size='1.25rem' className='text-sec-600' />}
                       titleHtml='Внимание!</br> Конституента имеет потомков<br/> в операционной схеме синтеза'
                     />
                   ) : null}
-                  {state.is_inherited ? (
+                  {activeCst.is_inherited ? (
                     <Indicator
                       icon={<IconChild size='1.25rem' className='text-sec-600' />}
                       titleHtml='Внимание!</br> Конституента является наследником<br/>'
diff --git a/rsconcept/frontend/src/pages/RSFormPage/EditorConstituenta/ToolbarConstituenta.tsx b/rsconcept/frontend/src/pages/RSFormPage/EditorConstituenta/ToolbarConstituenta.tsx
index 7d82d496..1b61f0ba 100644
--- a/rsconcept/frontend/src/pages/RSFormPage/EditorConstituenta/ToolbarConstituenta.tsx
+++ b/rsconcept/frontend/src/pages/RSFormPage/EditorConstituenta/ToolbarConstituenta.tsx
@@ -2,6 +2,10 @@
 
 import clsx from 'clsx';
 
+import { useConceptNavigation } from '@/app/Navigation/NavigationContext';
+import { urls } from '@/app/urls';
+import { useFindPredecessor } from '@/backend/oss/useFindPredecessor';
+import { useIsProcessingRSForm } from '@/backend/rsform/useIsProcessingRSForm';
 import {
   IconClone,
   IconDestroy,
@@ -19,17 +23,17 @@ import MiniSelectorOSS from '@/components/select/MiniSelectorOSS';
 import MiniButton from '@/components/ui/MiniButton';
 import Overlay from '@/components/ui/Overlay';
 import { HelpTopic } from '@/models/miscellaneous';
-import { IConstituenta } from '@/models/rsform';
+import { ConstituentaID, IConstituenta } from '@/models/rsform';
+import { useModificationStore } from '@/stores/modification';
 import { usePreferencesStore } from '@/stores/preferences';
 import { PARAMETER } from '@/utils/constants';
 import { prepareTooltip, tooltips } from '@/utils/labels';
 
-import { useRSEdit } from '../RSEditContext';
+import { RSTabID, useRSEdit } from '../RSEditContext';
 
 interface ToolbarConstituentaProps {
   activeCst?: IConstituenta;
   disabled: boolean;
-  modified: boolean;
 
   onSubmit: () => void;
   onReset: () => void;
@@ -38,15 +42,30 @@ interface ToolbarConstituentaProps {
 function ToolbarConstituenta({
   activeCst,
   disabled,
-  modified,
 
   onSubmit,
   onReset
 }: ToolbarConstituentaProps) {
   const controller = useRSEdit();
+  const router = useConceptNavigation();
+  const { findPredecessor } = useFindPredecessor();
 
   const showList = usePreferencesStore(state => state.showCstSideList);
   const toggleList = usePreferencesStore(state => state.toggleShowCstSideList);
+  const { isModified } = useModificationStore();
+  const isProcessing = useIsProcessingRSForm();
+
+  function viewPredecessor(target: ConstituentaID) {
+    findPredecessor({ target: target }, reference =>
+      router.push(
+        urls.schema_props({
+          id: reference.schema,
+          active: reference.id,
+          tab: RSTabID.CST_EDIT
+        })
+      )
+    );
+  }
 
   return (
     <Overlay
@@ -56,13 +75,13 @@ function ToolbarConstituenta({
       {controller.schema && controller.schema?.oss.length > 0 ? (
         <MiniSelectorOSS
           items={controller.schema.oss}
-          onSelect={(event, value) => controller.viewOSS(value.id, event.ctrlKey || event.metaKey)}
+          onSelect={(event, value) => controller.navigateOss(value.id, event.ctrlKey || event.metaKey)}
         />
       ) : null}
       {activeCst?.is_inherited ? (
         <MiniButton
           title='Перейти к исходной конституенте в ОСС'
-          onClick={() => controller.viewPredecessor(activeCst.id)}
+          onClick={() => viewPredecessor(activeCst.id)}
           icon={<IconPredecessor size='1.25rem' className='icon-primary' />}
         />
       ) : null}
@@ -71,25 +90,25 @@ function ToolbarConstituenta({
           <MiniButton
             titleHtml={prepareTooltip('Сохранить изменения', 'Ctrl + S')}
             icon={<IconSave size='1.25rem' className='icon-primary' />}
-            disabled={disabled || !modified}
+            disabled={disabled || !isModified}
             onClick={onSubmit}
           />
           <MiniButton
             title='Сбросить несохраненные изменения'
             icon={<IconReset size='1.25rem' className='icon-primary' />}
-            disabled={disabled || !modified}
+            disabled={disabled || !isModified}
             onClick={onReset}
           />
           <MiniButton
             title='Создать конституенту после данной'
             icon={<IconNewItem size='1.25rem' className='icon-green' />}
-            disabled={!controller.isContentEditable || controller.isProcessing}
+            disabled={!controller.isContentEditable || isProcessing}
             onClick={() => controller.createCst(activeCst?.cst_type, false)}
           />
           <MiniButton
-            titleHtml={modified ? tooltips.unsaved : prepareTooltip('Клонировать конституенту', 'Alt + V')}
+            titleHtml={isModified ? tooltips.unsaved : prepareTooltip('Клонировать конституенту', 'Alt + V')}
             icon={<IconClone size='1.25rem' className='icon-green' />}
-            disabled={disabled || modified}
+            disabled={disabled || isModified}
             onClick={controller.cloneCst}
           />
           <MiniButton
@@ -112,13 +131,13 @@ function ToolbarConstituenta({
           <MiniButton
             titleHtml={prepareTooltip('Переместить вверх', 'Alt + вверх')}
             icon={<IconMoveUp size='1.25rem' className='icon-primary' />}
-            disabled={disabled || modified || (controller.schema && controller.schema?.items.length < 2)}
+            disabled={disabled || isModified || (controller.schema && controller.schema?.items.length < 2)}
             onClick={controller.moveUp}
           />
           <MiniButton
             titleHtml={prepareTooltip('Переместить вниз', 'Alt + вниз')}
             icon={<IconMoveDown size='1.25rem' className='icon-primary' />}
-            disabled={disabled || modified || (controller.schema && controller.schema?.items.length < 2)}
+            disabled={disabled || isModified || (controller.schema && controller.schema?.items.length < 2)}
             onClick={controller.moveDown}
           />
         </>
diff --git a/rsconcept/frontend/src/pages/RSFormPage/EditorRSExpression/EditorRSExpression.tsx b/rsconcept/frontend/src/pages/RSFormPage/EditorRSExpression/EditorRSExpression.tsx
index 6cb63d9e..33d326f6 100644
--- a/rsconcept/frontend/src/pages/RSFormPage/EditorRSExpression/EditorRSExpression.tsx
+++ b/rsconcept/frontend/src/pages/RSFormPage/EditorRSExpression/EditorRSExpression.tsx
@@ -4,6 +4,7 @@ import { ReactCodeMirrorRef } from '@uiw/react-codemirror';
 import { useEffect, useRef, useState } from 'react';
 import { toast } from 'react-toastify';
 
+import { useIsProcessingRSForm } from '@/backend/rsform/useIsProcessingRSForm';
 import BadgeHelp from '@/components/info/BadgeHelp';
 import { CProps } from '@/components/props';
 import RSInput from '@/components/RSInput';
@@ -62,6 +63,7 @@ function EditorRSExpression({
   const parser = useRSParse({ schema: controller.schema });
   const rsInput = useRef<ReactCodeMirrorRef>(null);
 
+  const isProcessing = useIsProcessingRSForm();
   const showControls = usePreferencesStore(state => state.showExpressionControls);
   const showAST = useDialogsStore(state => state.showShowAST);
 
@@ -173,7 +175,7 @@ function EditorRSExpression({
       />
 
       <RSEditorControls
-        isOpen={showControls && (!disabled || (controller.isProcessing && !activeCst.is_inherited))}
+        isOpen={showControls && (!disabled || (isProcessing && !activeCst.is_inherited))}
         disabled={disabled}
         onEdit={handleEdit}
       />
diff --git a/rsconcept/frontend/src/pages/RSFormPage/EditorRSFormCard/EditorLibraryItem.tsx b/rsconcept/frontend/src/pages/RSFormPage/EditorRSFormCard/EditorLibraryItem.tsx
index 78ab5975..1c4436af 100644
--- a/rsconcept/frontend/src/pages/RSFormPage/EditorRSFormCard/EditorLibraryItem.tsx
+++ b/rsconcept/frontend/src/pages/RSFormPage/EditorRSFormCard/EditorLibraryItem.tsx
@@ -1,8 +1,14 @@
-import { Suspense, useCallback } from 'react';
+import { Suspense } from 'react';
 import { useIntl } from 'react-intl';
+import { toast } from 'react-toastify';
 
 import { useConceptNavigation } from '@/app/Navigation/NavigationContext';
 import { urls } from '@/app/urls';
+import { useIsProcessingLibrary } from '@/backend/library/useIsProcessingLibrary';
+import { useLibraryItem } from '@/backend/library/useLibraryItem';
+import { useSetEditors } from '@/backend/library/useSetEditors';
+import { useSetLocation } from '@/backend/library/useSetLocation';
+import { useSetOwner } from '@/backend/library/useSetOwner';
 import { useLabelUser } from '@/backend/users/useLabelUser';
 import {
   IconDateCreate,
@@ -21,51 +27,80 @@ import Overlay from '@/components/ui/Overlay';
 import Tooltip from '@/components/ui/Tooltip';
 import ValueIcon from '@/components/ui/ValueIcon';
 import useDropdown from '@/hooks/useDropdown';
-import { ILibraryItemData, ILibraryItemEditor } from '@/models/library';
+import { ILibraryItemEditor, LibraryItemID, LibraryItemType } from '@/models/library';
 import { UserID, UserRole } from '@/models/user';
+import { useDialogsStore } from '@/stores/dialogs';
 import { useLibrarySearchStore } from '@/stores/librarySearch';
+import { useModificationStore } from '@/stores/modification';
 import { useRoleStore } from '@/stores/role';
 import { prefixes } from '@/utils/constants';
-import { prompts } from '@/utils/labels';
+import { information, prompts } from '@/utils/labels';
 
 interface EditorLibraryItemProps {
-  item?: ILibraryItemData;
-  isModified?: boolean;
+  itemID: LibraryItemID;
+  itemType: LibraryItemType;
   controller: ILibraryItemEditor;
 }
 
-function EditorLibraryItem({ item, isModified, controller }: EditorLibraryItemProps) {
+function EditorLibraryItem({ itemID, itemType, controller }: EditorLibraryItemProps) {
   const getUserLabel = useLabelUser();
   const role = useRoleStore(state => state.role);
   const intl = useIntl();
   const router = useConceptNavigation();
-  const setLocation = useLibrarySearchStore(state => state.setLocation);
+  const setGlobalLocation = useLibrarySearchStore(state => state.setLocation);
+
+  const { item } = useLibraryItem({ itemID, itemType });
+  const isProcessing = useIsProcessingLibrary();
+  const { isModified } = useModificationStore();
+
+  const { setOwner } = useSetOwner();
+  const { setLocation } = useSetLocation();
+  const { setEditors } = useSetEditors();
+
+  const showEditEditors = useDialogsStore(state => state.showEditEditors);
+  const showEditLocation = useDialogsStore(state => state.showChangeLocation);
 
   const ownerSelector = useDropdown();
-  const onSelectUser = useCallback(
-    (newValue: UserID) => {
-      ownerSelector.hide();
-      if (newValue === item?.owner) {
-        return;
-      }
-      if (!window.confirm(prompts.ownerChange)) {
-        return;
-      }
-      controller.setOwner(newValue);
-    },
-    [controller, item?.owner, ownerSelector]
-  );
+  const onSelectUser = function (newValue: UserID) {
+    ownerSelector.hide();
+    if (newValue === item?.owner) {
+      return;
+    }
+    if (!window.confirm(prompts.ownerChange)) {
+      return;
+    }
+    setOwner({ itemID: itemID, owner: newValue }, () => toast.success(information.changesSaved));
+  };
 
-  const handleOpenLibrary = useCallback(
-    (event: CProps.EventMouse) => {
-      if (!item) {
-        return;
-      }
-      setLocation(item.location);
-      router.push(urls.library, event.ctrlKey || event.metaKey);
-    },
-    [setLocation, item, router]
-  );
+  function handleOpenLibrary(event: CProps.EventMouse) {
+    if (!item) {
+      return;
+    }
+    setGlobalLocation(item.location);
+    router.push(urls.library, event.ctrlKey || event.metaKey);
+  }
+
+  function handleEditLocation() {
+    if (!item) {
+      return;
+    }
+    showEditLocation({
+      initial: item.location,
+      onChangeLocation: newLocation =>
+        setLocation({ itemID: itemID, location: newLocation }, () => toast.success(information.moveComplete))
+    });
+  }
+
+  function handleEditEditors() {
+    if (!item) {
+      return;
+    }
+    showEditEditors({
+      editors: item.editors,
+      setEditors: newEditors =>
+        setEditors({ itemID: itemID, editors: newEditors }, () => toast.success(information.changesSaved))
+    });
+  }
 
   if (!item) {
     return null;
@@ -86,8 +121,8 @@ function EditorLibraryItem({ item, isModified, controller }: EditorLibraryItemPr
           icon={<IconFolderEdit size='1.25rem' className='icon-primary' />}
           value={item.location}
           title={controller.isAttachedToOSS ? 'Путь наследуется от ОСС' : 'Путь'}
-          onClick={controller.promptLocation}
-          disabled={isModified || controller.isProcessing || controller.isAttachedToOSS || role < UserRole.OWNER}
+          onClick={handleEditLocation}
+          disabled={isModified || isProcessing || controller.isAttachedToOSS || role < UserRole.OWNER}
         />
       </div>
 
@@ -108,7 +143,7 @@ function EditorLibraryItem({ item, isModified, controller }: EditorLibraryItemPr
         value={getUserLabel(item.owner)}
         title={controller.isAttachedToOSS ? 'Владелец наследуется от ОСС' : 'Владелец'}
         onClick={ownerSelector.toggle}
-        disabled={isModified || controller.isProcessing || controller.isAttachedToOSS || role < UserRole.OWNER}
+        disabled={isModified || isProcessing || controller.isAttachedToOSS || role < UserRole.OWNER}
       />
 
       <div className='sm:mb-1 flex justify-between items-center'>
@@ -117,8 +152,8 @@ function EditorLibraryItem({ item, isModified, controller }: EditorLibraryItemPr
           dense
           icon={<IconEditor size='1.25rem' className='icon-primary' />}
           value={item.editors.length}
-          onClick={controller.promptEditors}
-          disabled={isModified || controller.isProcessing || role < UserRole.OWNER}
+          onClick={handleEditEditors}
+          disabled={isModified || isProcessing || role < UserRole.OWNER}
         />
         <Tooltip anchorSelect='#editor_stats' layer='z-modalTooltip'>
           <Suspense fallback={<Loader scale={2} />}>
diff --git a/rsconcept/frontend/src/pages/RSFormPage/EditorRSFormCard/EditorRSFormCard.tsx b/rsconcept/frontend/src/pages/RSFormPage/EditorRSFormCard/EditorRSFormCard.tsx
index 032c6798..754195e5 100644
--- a/rsconcept/frontend/src/pages/RSFormPage/EditorRSFormCard/EditorRSFormCard.tsx
+++ b/rsconcept/frontend/src/pages/RSFormPage/EditorRSFormCard/EditorRSFormCard.tsx
@@ -3,6 +3,8 @@
 import clsx from 'clsx';
 
 import FlexColumn from '@/components/ui/FlexColumn';
+import { LibraryItemType } from '@/models/library';
+import { useModificationStore } from '@/stores/modification';
 import { globals } from '@/utils/constants';
 
 import { useRSEdit } from '../RSEditContext';
@@ -11,14 +13,9 @@ import FormRSForm from './FormRSForm';
 import RSFormStats from './RSFormStats';
 import ToolbarRSFormCard from './ToolbarRSFormCard';
 
-interface EditorRSFormCardProps {
-  isModified: boolean;
-  setIsModified: (newValue: boolean) => void;
-  onDestroy: () => void;
-}
-
-function EditorRSFormCard({ isModified, onDestroy, setIsModified }: EditorRSFormCardProps) {
+function EditorRSFormCard() {
   const controller = useRSEdit();
+  const { isModified } = useModificationStore();
 
   function initiateSubmit() {
     const element = document.getElementById(globals.library_item_editor) as HTMLFormElement;
@@ -38,12 +35,7 @@ function EditorRSFormCard({ isModified, onDestroy, setIsModified }: EditorRSForm
 
   return (
     <>
-      <ToolbarRSFormCard
-        modified={isModified}
-        onSubmit={initiateSubmit}
-        onDestroy={onDestroy}
-        controller={controller}
-      />
+      <ToolbarRSFormCard onSubmit={initiateSubmit} controller={controller} />
       <div
         onKeyDown={handleInput}
         className={clsx(
@@ -53,8 +45,8 @@ function EditorRSFormCard({ isModified, onDestroy, setIsModified }: EditorRSForm
         )}
       >
         <FlexColumn className='flex-shrink'>
-          <FormRSForm id={globals.library_item_editor} isModified={isModified} setIsModified={setIsModified} />
-          <EditorLibraryItem item={controller.schema} isModified={isModified} controller={controller} />
+          <FormRSForm id={globals.library_item_editor} />
+          <EditorLibraryItem itemID={controller.schema.id} itemType={LibraryItemType.RSFORM} controller={controller} />
         </FlexColumn>
 
         {controller.schema ? <RSFormStats stats={controller.schema.stats} isArchive={controller.isArchive} /> : null}
diff --git a/rsconcept/frontend/src/pages/RSFormPage/EditorRSFormCard/FormRSForm.tsx b/rsconcept/frontend/src/pages/RSFormPage/EditorRSFormCard/FormRSForm.tsx
index c1152436..1ea51cab 100644
--- a/rsconcept/frontend/src/pages/RSFormPage/EditorRSFormCard/FormRSForm.tsx
+++ b/rsconcept/frontend/src/pages/RSFormPage/EditorRSFormCard/FormRSForm.tsx
@@ -3,15 +3,19 @@
 import clsx from 'clsx';
 import { useEffect, useState } from 'react';
 
+import { useConceptNavigation } from '@/app/Navigation/NavigationContext';
+import { urls } from '@/app/urls';
 import { ILibraryUpdateDTO } from '@/backend/library/api';
 import { useUpdateItem } from '@/backend/library/useUpdateItem';
+import { useIsProcessingRSForm } from '@/backend/rsform/useIsProcessingRSForm';
 import { IconSave } from '@/components/Icons';
 import SelectVersion from '@/components/select/SelectVersion';
 import Label from '@/components/ui/Label';
 import SubmitButton from '@/components/ui/SubmitButton';
 import TextArea from '@/components/ui/TextArea';
 import TextInput from '@/components/ui/TextInput';
-import { LibraryItemType } from '@/models/library';
+import { LibraryItemType, VersionID } from '@/models/library';
+import { useModificationStore } from '@/stores/modification';
 
 import { useRSEdit } from '../RSEditContext';
 import ToolbarItemAccess from './ToolbarItemAccess';
@@ -19,14 +23,15 @@ import ToolbarVersioning from './ToolbarVersioning';
 
 interface FormRSFormProps {
   id?: string;
-  isModified: boolean;
-  setIsModified: (newValue: boolean) => void;
 }
 
-function FormRSForm({ id, isModified, setIsModified }: FormRSFormProps) {
+function FormRSForm({ id }: FormRSFormProps) {
   const controller = useRSEdit();
+  const router = useConceptNavigation();
   const schema = controller.schema;
   const { updateItem: update } = useUpdateItem();
+  const { isModified, setIsModified } = useModificationStore();
+  const isProcessing = useIsProcessingRSForm();
 
   const [title, setTitle] = useState(schema?.title ?? '');
   const [alias, setAlias] = useState(schema?.alias ?? '');
@@ -34,6 +39,10 @@ function FormRSForm({ id, isModified, setIsModified }: FormRSFormProps) {
   const [visible, setVisible] = useState(schema?.visible ?? false);
   const [readOnly, setReadOnly] = useState(schema?.read_only ?? false);
 
+  function handleSelectVersion(version?: VersionID) {
+    router.push(urls.schema(schema.id, version));
+  }
+
   useEffect(() => {
     if (schema) {
       setTitle(schema.title);
@@ -127,7 +136,7 @@ function FormRSForm({ id, isModified, setIsModified }: FormRSFormProps) {
             className='select-none'
             value={schema?.version} //
             items={schema?.versions}
-            onSelectValue={controller.viewVersion}
+            onSelectValue={handleSelectVersion}
           />
         </div>
       </div>
@@ -137,14 +146,14 @@ function FormRSForm({ id, isModified, setIsModified }: FormRSFormProps) {
         label='Описание'
         rows={3}
         value={comment}
-        disabled={!controller.isContentEditable || controller.isProcessing}
+        disabled={!controller.isContentEditable || isProcessing}
         onChange={event => setComment(event.target.value)}
       />
       {controller.isContentEditable || isModified ? (
         <SubmitButton
           text='Сохранить изменения'
           className='self-center mt-4'
-          loading={controller.isProcessing}
+          loading={isProcessing}
           disabled={!isModified}
           icon={<IconSave size='1.25rem' />}
         />
diff --git a/rsconcept/frontend/src/pages/RSFormPage/EditorRSFormCard/ToolbarItemAccess.tsx b/rsconcept/frontend/src/pages/RSFormPage/EditorRSFormCard/ToolbarItemAccess.tsx
index c04f528e..34787033 100644
--- a/rsconcept/frontend/src/pages/RSFormPage/EditorRSFormCard/ToolbarItemAccess.tsx
+++ b/rsconcept/frontend/src/pages/RSFormPage/EditorRSFormCard/ToolbarItemAccess.tsx
@@ -1,3 +1,7 @@
+import { toast } from 'react-toastify';
+
+import { useIsProcessingLibrary } from '@/backend/library/useIsProcessingLibrary';
+import { useSetAccessPolicy } from '@/backend/library/useSetAccessPolicy';
 import { VisibilityIcon } from '@/components/DomainIcons';
 import { IconImmutable, IconMutable } from '@/components/Icons';
 import BadgeHelp from '@/components/info/BadgeHelp';
@@ -10,6 +14,7 @@ import { HelpTopic } from '@/models/miscellaneous';
 import { UserRole } from '@/models/user';
 import { useRoleStore } from '@/stores/role';
 import { PARAMETER } from '@/utils/constants';
+import { information } from '@/utils/labels';
 
 interface ToolbarItemAccessProps {
   visible: boolean;
@@ -21,23 +26,29 @@ interface ToolbarItemAccessProps {
 
 function ToolbarItemAccess({ visible, toggleVisible, readOnly, toggleReadOnly, controller }: ToolbarItemAccessProps) {
   const role = useRoleStore(state => state.role);
-  const policy = controller.schema?.access_policy ?? AccessPolicy.PRIVATE;
+  const isProcessing = useIsProcessingLibrary();
+  const policy = controller.schema.access_policy;
+  const { setAccessPolicy } = useSetAccessPolicy();
+
+  function handleSetAccessPolicy(newPolicy: AccessPolicy) {
+    setAccessPolicy({ itemID: controller.schema.id, policy: newPolicy }, () => toast.success(information.changesSaved));
+  }
 
   return (
     <Overlay position='top-[4.5rem] right-0 w-[12rem] pr-2' className='flex' layer='z-bottom'>
       <Label text='Доступ' className='self-center select-none' />
       <div className='ml-auto cc-icons'>
         <SelectAccessPolicy
-          disabled={role <= UserRole.EDITOR || controller.isProcessing || controller.isAttachedToOSS}
+          disabled={role <= UserRole.EDITOR || isProcessing || controller.isAttachedToOSS}
           value={policy}
-          onChange={newPolicy => controller.setAccessPolicy(newPolicy)}
+          onChange={handleSetAccessPolicy}
         />
 
         <MiniButton
           title={visible ? 'Библиотека: отображать' : 'Библиотека: скрывать'}
           icon={<VisibilityIcon value={visible} />}
           onClick={toggleVisible}
-          disabled={role === UserRole.READER || controller.isProcessing}
+          disabled={role === UserRole.READER || isProcessing}
         />
 
         <MiniButton
@@ -50,7 +61,7 @@ function ToolbarItemAccess({ visible, toggleVisible, readOnly, toggleReadOnly, c
             )
           }
           onClick={toggleReadOnly}
-          disabled={role === UserRole.READER || controller.isProcessing}
+          disabled={role === UserRole.READER || isProcessing}
         />
 
         <BadgeHelp topic={HelpTopic.ACCESS} className={PARAMETER.TOOLTIP_WIDTH} offset={4} />
diff --git a/rsconcept/frontend/src/pages/RSFormPage/EditorRSFormCard/ToolbarRSFormCard.tsx b/rsconcept/frontend/src/pages/RSFormPage/EditorRSFormCard/ToolbarRSFormCard.tsx
index e7fe2d4c..f4e78056 100644
--- a/rsconcept/frontend/src/pages/RSFormPage/EditorRSFormCard/ToolbarRSFormCard.tsx
+++ b/rsconcept/frontend/src/pages/RSFormPage/EditorRSFormCard/ToolbarRSFormCard.tsx
@@ -1,5 +1,6 @@
 'use client';
 
+import { useIsProcessingLibrary } from '@/backend/library/useIsProcessingLibrary';
 import { IconDestroy, IconSave, IconShare } from '@/components/Icons';
 import BadgeHelp from '@/components/info/BadgeHelp';
 import MiniSelectorOSS from '@/components/select/MiniSelectorOSS';
@@ -9,22 +10,24 @@ import { AccessPolicy, ILibraryItemEditor, LibraryItemType } from '@/models/libr
 import { HelpTopic } from '@/models/miscellaneous';
 import { IRSForm } from '@/models/rsform';
 import { UserRole } from '@/models/user';
+import { useModificationStore } from '@/stores/modification';
 import { useRoleStore } from '@/stores/role';
 import { PARAMETER } from '@/utils/constants';
 import { prepareTooltip, tooltips } from '@/utils/labels';
+import { sharePage } from '@/utils/utils';
 
 import { IRSEditContext } from '../RSEditContext';
 
 interface ToolbarRSFormCardProps {
-  modified: boolean;
   onSubmit: () => void;
-  onDestroy: () => void;
   controller: ILibraryItemEditor;
 }
 
-function ToolbarRSFormCard({ modified, controller, onSubmit, onDestroy }: ToolbarRSFormCardProps) {
+function ToolbarRSFormCard({ controller, onSubmit }: ToolbarRSFormCardProps) {
   const role = useRoleStore(state => state.role);
-  const canSave = modified && !controller.isProcessing;
+  const { isModified } = useModificationStore();
+  const isProcessing = useIsProcessingLibrary();
+  const canSave = isModified && !isProcessing;
 
   const ossSelector = (() => {
     if (!controller.schema || controller.schema?.item_type !== LibraryItemType.RSFORM) {
@@ -37,7 +40,9 @@ function ToolbarRSFormCard({ modified, controller, onSubmit, onDestroy }: Toolba
     return (
       <MiniSelectorOSS
         items={schema.oss}
-        onSelect={(event, value) => (controller as IRSEditContext).viewOSS(value.id, event.ctrlKey || event.metaKey)}
+        onSelect={(event, value) =>
+          (controller as IRSEditContext).navigateOss(value.id, event.ctrlKey || event.metaKey)
+        }
       />
     );
   })();
@@ -45,7 +50,7 @@ function ToolbarRSFormCard({ modified, controller, onSubmit, onDestroy }: Toolba
   return (
     <Overlay position='cc-tab-tools' className='cc-icons'>
       {ossSelector}
-      {controller.isMutable || modified ? (
+      {controller.isMutable || isModified ? (
         <MiniButton
           titleHtml={prepareTooltip('Сохранить изменения', 'Ctrl + S')}
           disabled={!canSave}
@@ -56,15 +61,15 @@ function ToolbarRSFormCard({ modified, controller, onSubmit, onDestroy }: Toolba
       <MiniButton
         titleHtml={tooltips.shareItem(controller.schema?.access_policy)}
         icon={<IconShare size='1.25rem' className='icon-primary' />}
-        onClick={controller.share}
+        onClick={sharePage}
         disabled={controller.schema?.access_policy !== AccessPolicy.PUBLIC}
       />
       {controller.isMutable ? (
         <MiniButton
           title='Удалить схему'
           icon={<IconDestroy size='1.25rem' className='icon-red' />}
-          disabled={!controller.isMutable || controller.isProcessing || role < UserRole.OWNER}
-          onClick={onDestroy}
+          disabled={!controller.isMutable || isProcessing || role < UserRole.OWNER}
+          onClick={controller.deleteSchema}
         />
       ) : null}
       <BadgeHelp topic={HelpTopic.UI_RS_CARD} offset={4} className={PARAMETER.TOOLTIP_WIDTH} />
diff --git a/rsconcept/frontend/src/pages/RSFormPage/EditorRSFormCard/ToolbarVersioning.tsx b/rsconcept/frontend/src/pages/RSFormPage/EditorRSFormCard/ToolbarVersioning.tsx
index 1199ff56..0c29376b 100644
--- a/rsconcept/frontend/src/pages/RSFormPage/EditorRSFormCard/ToolbarVersioning.tsx
+++ b/rsconcept/frontend/src/pages/RSFormPage/EditorRSFormCard/ToolbarVersioning.tsx
@@ -1,9 +1,19 @@
+import { toast } from 'react-toastify';
+
+import { useConceptNavigation } from '@/app/Navigation/NavigationContext';
+import { urls } from '@/app/urls';
+import { useVersionCreate } from '@/backend/library/useVersionCreate';
+import { useVersionRestore } from '@/backend/library/useVersionRestore';
 import { IconNewVersion, IconUpload, IconVersions } from '@/components/Icons';
 import BadgeHelp from '@/components/info/BadgeHelp';
 import MiniButton from '@/components/ui/MiniButton';
 import Overlay from '@/components/ui/Overlay';
 import { HelpTopic } from '@/models/miscellaneous';
+import { useDialogsStore } from '@/stores/dialogs';
+import { useModificationStore } from '@/stores/modification';
 import { PARAMETER } from '@/utils/constants';
+import { information, prompts } from '@/utils/labels';
+import { promptUnsaved } from '@/utils/utils';
 
 import { useRSEdit } from '../RSEditContext';
 
@@ -13,6 +23,45 @@ interface ToolbarVersioningProps {
 
 function ToolbarVersioning({ blockReload }: ToolbarVersioningProps) {
   const controller = useRSEdit();
+  const router = useConceptNavigation();
+  const { isModified } = useModificationStore();
+  const { versionRestore } = useVersionRestore();
+  const { versionCreate } = useVersionCreate();
+
+  const showCreateVersion = useDialogsStore(state => state.showCreateVersion);
+  const showEditVersions = useDialogsStore(state => state.showEditVersions);
+
+  function handleRestoreVersion() {
+    if (!controller.schema.version || !window.confirm(prompts.restoreArchive)) {
+      return;
+    }
+    versionRestore({ itemID: controller.schema.id, versionID: controller.schema.version }, () => {
+      toast.success(information.versionRestored);
+      router.push(urls.schema(controller.schema.id));
+    });
+  }
+
+  function handleCreateVersion() {
+    if (isModified && !promptUnsaved()) {
+      return;
+    }
+    showCreateVersion({
+      versions: controller.schema.versions,
+      selected: controller.selected,
+      totalCount: controller.schema.items.length,
+      onCreate: data =>
+        versionCreate({ itemID: controller.schema.id, data: data }, () => {
+          toast.success(information.newVersion(data.version));
+        })
+    });
+  }
+
+  function handleEditVersions() {
+    showEditVersions({
+      item: controller.schema
+    });
+  }
+
   return (
     <Overlay position='top-[-0.4rem] right-[0rem]' className='pr-2 cc-icons' layer='z-bottom'>
       {controller.isMutable ? (
@@ -26,19 +75,19 @@ function ToolbarVersioning({ blockReload }: ToolbarVersioningProps) {
                 : 'Переключитесь на <br/>неактуальную версию'
             }
             disabled={controller.isContentEditable || blockReload}
-            onClick={() => controller.restoreVersion()}
+            onClick={handleRestoreVersion}
             icon={<IconUpload size='1.25rem' className='icon-red' />}
           />
           <MiniButton
             titleHtml={controller.isContentEditable ? 'Создать версию' : 'Переключитесь <br/>на актуальную версию'}
             disabled={!controller.isContentEditable}
-            onClick={controller.createVersion}
+            onClick={handleCreateVersion}
             icon={<IconNewVersion size='1.25rem' className='icon-green' />}
           />
           <MiniButton
             title={controller.schema?.versions.length === 0 ? 'Список версий пуст' : 'Редактировать версии'}
             disabled={!controller.schema || controller.schema?.versions.length === 0}
-            onClick={controller.promptEditVersions}
+            onClick={handleEditVersions}
             icon={<IconVersions size='1.25rem' className='icon-primary' />}
           />
         </>
diff --git a/rsconcept/frontend/src/pages/RSFormPage/EditorRSList/EditorRSList.tsx b/rsconcept/frontend/src/pages/RSFormPage/EditorRSList/EditorRSList.tsx
index 0535a528..ef313a25 100644
--- a/rsconcept/frontend/src/pages/RSFormPage/EditorRSList/EditorRSList.tsx
+++ b/rsconcept/frontend/src/pages/RSFormPage/EditorRSList/EditorRSList.tsx
@@ -4,6 +4,7 @@ import fileDownload from 'js-file-download';
 import { useEffect, useState } from 'react';
 import { toast } from 'react-toastify';
 
+import { useIsProcessingRSForm } from '@/backend/rsform/useIsProcessingRSForm';
 import { IconCSV } from '@/components/Icons';
 import { type RowSelectionState } from '@/components/ui/DataTable';
 import MiniButton from '@/components/ui/MiniButton';
@@ -20,13 +21,10 @@ import { useRSEdit } from '../RSEditContext';
 import TableRSList from './TableRSList';
 import ToolbarRSList from './ToolbarRSList';
 
-interface EditorRSListProps {
-  onOpenEdit: (cstID: ConstituentaID) => void;
-}
-
-function EditorRSList({ onOpenEdit }: EditorRSListProps) {
+function EditorRSList() {
   const [rowSelection, setRowSelection] = useState<RowSelectionState>({});
   const controller = useRSEdit();
+  const isProcessing = useIsProcessingRSForm();
 
   const [filtered, setFiltered] = useState<IConstituenta[]>(controller.schema?.items ?? []);
   const [filterText, setFilterText] = useState('');
@@ -91,7 +89,7 @@ function EditorRSList({ onOpenEdit }: EditorRSListProps) {
       controller.deselectAll();
       return;
     }
-    if (!controller.isContentEditable || controller.isProcessing) {
+    if (!controller.isContentEditable || isProcessing) {
       return;
     }
     if (event.key === 'Delete' && controller.canDeleteSelected) {
@@ -170,7 +168,7 @@ function EditorRSList({ onOpenEdit }: EditorRSListProps) {
           enableSelection={controller.isContentEditable}
           selected={rowSelection}
           setSelected={handleRowSelection}
-          onEdit={onOpenEdit}
+          onEdit={controller.navigateCst}
           onCreateNew={() => controller.createCst(undefined, false)}
         />
       </div>
diff --git a/rsconcept/frontend/src/pages/RSFormPage/EditorRSList/ToolbarRSList.tsx b/rsconcept/frontend/src/pages/RSFormPage/EditorRSList/ToolbarRSList.tsx
index fb0fa940..e8f76436 100644
--- a/rsconcept/frontend/src/pages/RSFormPage/EditorRSList/ToolbarRSList.tsx
+++ b/rsconcept/frontend/src/pages/RSFormPage/EditorRSList/ToolbarRSList.tsx
@@ -1,3 +1,4 @@
+import { useIsProcessingRSForm } from '@/backend/rsform/useIsProcessingRSForm';
 import { CstTypeIcon } from '@/components/DomainIcons';
 import {
   IconClone,
@@ -24,6 +25,7 @@ import { useRSEdit } from '../RSEditContext';
 
 function ToolbarRSList() {
   const controller = useRSEdit();
+  const isProcessing = useIsProcessingRSForm();
   const insertMenu = useDropdown();
 
   return (
@@ -34,7 +36,7 @@ function ToolbarRSList() {
       {controller.schema && controller.schema?.oss.length > 0 ? (
         <MiniSelectorOSS
           items={controller.schema.oss}
-          onSelect={(event, value) => controller.viewOSS(value.id, event.ctrlKey || event.metaKey)}
+          onSelect={(event, value) => controller.navigateOss(value.id, event.ctrlKey || event.metaKey)}
         />
       ) : null}
       <MiniButton
@@ -47,7 +49,7 @@ function ToolbarRSList() {
         titleHtml={prepareTooltip('Переместить вверх', 'Alt + вверх')}
         icon={<IconMoveUp size='1.25rem' className='icon-primary' />}
         disabled={
-          controller.isProcessing ||
+          isProcessing ||
           controller.selected.length === 0 ||
           (controller.schema && controller.selected.length === controller.schema.items.length)
         }
@@ -57,7 +59,7 @@ function ToolbarRSList() {
         titleHtml={prepareTooltip('Переместить вниз', 'Alt + вниз')}
         icon={<IconMoveDown size='1.25rem' className='icon-primary' />}
         disabled={
-          controller.isProcessing ||
+          isProcessing ||
           controller.selected.length === 0 ||
           (controller.schema && controller.selected.length === controller.schema.items.length)
         }
@@ -68,7 +70,7 @@ function ToolbarRSList() {
           title='Добавить пустую конституенту'
           hideTitle={insertMenu.isOpen}
           icon={<IconOpenList size='1.25rem' className='icon-green' />}
-          disabled={controller.isProcessing}
+          disabled={isProcessing}
           onClick={insertMenu.toggle}
         />
         <Dropdown isOpen={insertMenu.isOpen} className='-translate-x-1/2 md:translate-x-0'>
@@ -86,19 +88,19 @@ function ToolbarRSList() {
       <MiniButton
         titleHtml={prepareTooltip('Добавить новую конституенту...', 'Alt + `')}
         icon={<IconNewItem size='1.25rem' className='icon-green' />}
-        disabled={controller.isProcessing}
+        disabled={isProcessing}
         onClick={() => controller.createCst(undefined, false)}
       />
       <MiniButton
         titleHtml={prepareTooltip('Клонировать конституенту', 'Alt + V')}
         icon={<IconClone size='1.25rem' className='icon-green' />}
-        disabled={controller.isProcessing || controller.selected.length !== 1}
+        disabled={isProcessing || controller.selected.length !== 1}
         onClick={controller.cloneCst}
       />
       <MiniButton
         titleHtml={prepareTooltip('Удалить выбранные', 'Delete')}
         icon={<IconDestroy size='1.25rem' className='icon-red' />}
-        disabled={controller.isProcessing || !controller.canDeleteSelected}
+        disabled={isProcessing || !controller.canDeleteSelected}
         onClick={controller.promptDeleteCst}
       />
       <BadgeHelp topic={HelpTopic.UI_RS_LIST} offset={5} />
diff --git a/rsconcept/frontend/src/pages/RSFormPage/EditorTermGraph/EditorTermGraph.tsx b/rsconcept/frontend/src/pages/RSFormPage/EditorTermGraph/EditorTermGraph.tsx
index 84b71254..fcc29f3c 100644
--- a/rsconcept/frontend/src/pages/RSFormPage/EditorTermGraph/EditorTermGraph.tsx
+++ b/rsconcept/frontend/src/pages/RSFormPage/EditorTermGraph/EditorTermGraph.tsx
@@ -1,17 +1,11 @@
 import { ReactFlowProvider } from 'reactflow';
 
-import { ConstituentaID } from '@/models/rsform';
-
 import TGFlow from './TGFlow';
 
-interface EditorTermGraphProps {
-  onOpenEdit: (cstID: ConstituentaID) => void;
-}
-
-function EditorTermGraph({ onOpenEdit }: EditorTermGraphProps) {
+function EditorTermGraph() {
   return (
     <ReactFlowProvider>
-      <TGFlow onOpenEdit={onOpenEdit} />
+      <TGFlow />
     </ReactFlowProvider>
   );
 }
diff --git a/rsconcept/frontend/src/pages/RSFormPage/EditorTermGraph/TGFlow.tsx b/rsconcept/frontend/src/pages/RSFormPage/EditorTermGraph/TGFlow.tsx
index 106358e8..07498a6d 100644
--- a/rsconcept/frontend/src/pages/RSFormPage/EditorTermGraph/TGFlow.tsx
+++ b/rsconcept/frontend/src/pages/RSFormPage/EditorTermGraph/TGFlow.tsx
@@ -19,6 +19,7 @@ import {
 import { useStoreApi } from 'reactflow';
 import { useDebounce } from 'use-debounce';
 
+import { useIsProcessingRSForm } from '@/backend/rsform/useIsProcessingRSForm';
 import InfoConstituenta from '@/components/info/InfoConstituenta';
 import SelectedCounter from '@/components/info/SelectedCounter';
 import { CProps } from '@/components/props';
@@ -47,18 +48,13 @@ import ViewHidden from './ViewHidden';
 const ZOOM_MAX = 3;
 const ZOOM_MIN = 0.25;
 
-interface TGFlowProps {
-  onOpenEdit: (cstID: ConstituentaID) => void;
-}
-
-function TGFlow({ onOpenEdit }: TGFlowProps) {
+function TGFlow() {
   const mainHeight = useMainHeight();
   const controller = useRSEdit();
-  const [nodes, setNodes, onNodesChange] = useNodesState([]);
-  const [edges, setEdges] = useEdgesState([]);
   const flow = useReactFlow();
   const store = useStoreApi();
   const { addSelectedNodes } = store.getState();
+  const isProcessing = useIsProcessingRSForm();
 
   const showParams = useDialogsStore(state => state.showGraphParams);
 
@@ -67,6 +63,9 @@ function TGFlow({ onOpenEdit }: TGFlowProps) {
   const coloring = useTermGraphStore(state => state.coloring);
   const setColoring = useTermGraphStore(state => state.setColoring);
 
+  const [nodes, setNodes, onNodesChange] = useNodesState([]);
+  const [edges, setEdges] = useEdgesState([]);
+
   const [focusCst, setFocusCst] = useState<IConstituenta | undefined>(undefined);
   const filteredGraph = useGraphFilter(controller.schema, filter, focusCst);
   const [hidden, setHidden] = useState<ConstituentaID[]>([]);
@@ -113,7 +112,7 @@ function TGFlow({ onOpenEdit }: TGFlowProps) {
   const resetNodes = useCallback(() => {
     const newNodes: Node<TGNodeData>[] = [];
     filteredGraph.nodes.forEach(node => {
-      const cst = controller.schema!.cstByID.get(node.id);
+      const cst = controller.schema.cstByID.get(node.id);
       if (cst) {
         newNodes.push({
           id: String(node.id),
@@ -184,7 +183,7 @@ function TGFlow({ onOpenEdit }: TGFlowProps) {
     if (!controller.schema) {
       return;
     }
-    const definition = controller.selected.map(id => controller.schema!.cstByID.get(id)!.alias).join(' ');
+    const definition = controller.selected.map(id => controller.schema.cstByID.get(id)!.alias).join(' ');
     controller.createCst(controller.selected.length === 0 ? CstType.BASE : CstType.TERM, false, definition);
   }
 
@@ -232,7 +231,7 @@ function TGFlow({ onOpenEdit }: TGFlowProps) {
   }
 
   function handleKeyDown(event: React.KeyboardEvent<HTMLDivElement>) {
-    if (controller.isProcessing) {
+    if (isProcessing) {
       return;
     }
     if (event.key === 'Escape') {
@@ -282,7 +281,7 @@ function TGFlow({ onOpenEdit }: TGFlowProps) {
   function handleNodeDoubleClick(event: CProps.EventMouse, cstID: ConstituentaID) {
     event.preventDefault();
     event.stopPropagation();
-    onOpenEdit(cstID);
+    controller.navigateCst(cstID);
   }
 
   function handleNodeEnter(event: CProps.EventMouse, cstID: ConstituentaID) {
@@ -314,11 +313,11 @@ function TGFlow({ onOpenEdit }: TGFlowProps) {
         />
         {!focusCst ? (
           <ToolbarGraphSelection
-            graph={controller.schema!.graph}
+            graph={controller.schema.graph}
             isCore={cstID => isBasicConcept(controller.schema?.cstByID.get(cstID)?.cst_type)}
             isOwned={
               controller.schema && controller.schema.inheritance.length > 0
-                ? cstID => !controller.schema!.cstByID.get(cstID)?.is_inherited
+                ? cstID => !controller.schema.cstByID.get(cstID)?.is_inherited
                 : undefined
             }
             selected={controller.selected}
@@ -386,7 +385,6 @@ function TGFlow({ onOpenEdit }: TGFlowProps) {
               coloringScheme={coloring}
               toggleSelection={controller.toggleSelect}
               setFocus={handleSetFocus}
-              onEdit={onOpenEdit}
             />
           </div>
         </Overlay>
diff --git a/rsconcept/frontend/src/pages/RSFormPage/EditorTermGraph/ToolbarTermGraph.tsx b/rsconcept/frontend/src/pages/RSFormPage/EditorTermGraph/ToolbarTermGraph.tsx
index 42d167c9..f8587d02 100644
--- a/rsconcept/frontend/src/pages/RSFormPage/EditorTermGraph/ToolbarTermGraph.tsx
+++ b/rsconcept/frontend/src/pages/RSFormPage/EditorTermGraph/ToolbarTermGraph.tsx
@@ -1,5 +1,6 @@
 import clsx from 'clsx';
 
+import { useIsProcessingRSForm } from '@/backend/rsform/useIsProcessingRSForm';
 import {
   IconClustering,
   IconClusteringOff,
@@ -16,6 +17,7 @@ import BadgeHelp from '@/components/info/BadgeHelp';
 import MiniSelectorOSS from '@/components/select/MiniSelectorOSS';
 import MiniButton from '@/components/ui/MiniButton';
 import { HelpTopic } from '@/models/miscellaneous';
+import { useDialogsStore } from '@/stores/dialogs';
 import { PARAMETER } from '@/utils/constants';
 
 import { useRSEdit } from '../RSEditContext';
@@ -46,13 +48,24 @@ function ToolbarTermGraph({
   onSaveImage
 }: ToolbarTermGraphProps) {
   const controller = useRSEdit();
+  const isProcessing = useIsProcessingRSForm();
+  const showTypeGraph = useDialogsStore(state => state.showShowTypeGraph);
+
+  function handleShowTypeGraph() {
+    const typeInfo = controller.schema?.items.map(item => ({
+      alias: item.alias,
+      result: item.parse.typification,
+      args: item.parse.args
+    }));
+    showTypeGraph({ items: typeInfo ?? [] });
+  }
 
   return (
     <div className='cc-icons'>
       {controller.schema && controller.schema?.oss.length > 0 ? (
         <MiniSelectorOSS
           items={controller.schema.oss}
-          onSelect={(event, value) => controller.viewOSS(value.id, event.ctrlKey || event.metaKey)}
+          onSelect={(event, value) => controller.navigateOss(value.id, event.ctrlKey || event.metaKey)}
         />
       ) : null}
       <MiniButton
@@ -91,7 +104,7 @@ function ToolbarTermGraph({
         <MiniButton
           title='Новая конституента'
           icon={<IconNewItem size='1.25rem' className='icon-green' />}
-          disabled={controller.isProcessing}
+          disabled={isProcessing}
           onClick={onCreate}
         />
       ) : null}
@@ -99,14 +112,14 @@ function ToolbarTermGraph({
         <MiniButton
           title='Удалить выбранные'
           icon={<IconDestroy size='1.25rem' className='icon-red' />}
-          disabled={!controller.canDeleteSelected || controller.isProcessing}
+          disabled={!controller.canDeleteSelected || isProcessing}
           onClick={onDelete}
         />
       ) : null}
       <MiniButton
         icon={<IconTypeGraph size='1.25rem' className='icon-primary' />}
         title='Граф ступеней'
-        onClick={() => controller.showTypeGraph()}
+        onClick={handleShowTypeGraph}
       />
       <MiniButton
         icon={<IconImage size='1.25rem' className='icon-primary' />}
diff --git a/rsconcept/frontend/src/pages/RSFormPage/EditorTermGraph/ViewHidden.tsx b/rsconcept/frontend/src/pages/RSFormPage/EditorTermGraph/ViewHidden.tsx
index df4424ac..f14ba26f 100644
--- a/rsconcept/frontend/src/pages/RSFormPage/EditorTermGraph/ViewHidden.tsx
+++ b/rsconcept/frontend/src/pages/RSFormPage/EditorTermGraph/ViewHidden.tsx
@@ -15,6 +15,8 @@ import { useTooltipsStore } from '@/stores/tooltips';
 import { APP_COLORS, colorBgGraphNode } from '@/styling/color';
 import { globals, PARAMETER, prefixes } from '@/utils/constants';
 
+import { useRSEdit } from '../RSEditContext';
+
 interface ViewHiddenProps {
   items: ConstituentaID[];
   selected: ConstituentaID[];
@@ -23,13 +25,13 @@ interface ViewHiddenProps {
 
   toggleSelection: (cstID: ConstituentaID) => void;
   setFocus: (cstID: ConstituentaID) => void;
-  onEdit: (cstID: ConstituentaID) => void;
 }
 
-function ViewHidden({ items, selected, toggleSelection, setFocus, schema, coloringScheme, onEdit }: ViewHiddenProps) {
+function ViewHidden({ items, selected, toggleSelection, setFocus, schema, coloringScheme }: ViewHiddenProps) {
   const windowSize = useWindowSize();
   const localSelected = items.filter(id => selected.includes(id));
 
+  const { navigateCst } = useRSEdit();
   const isFolded = useTermGraphStore(state => state.foldHidden);
   const toggleFolded = useTermGraphStore(state => state.toggleFoldHidden);
   const setActiveCst = useTooltipsStore(state => state.setActiveCst);
@@ -108,7 +110,7 @@ function ViewHidden({ items, selected, toggleSelection, setFocus, schema, colori
                   : {})
               }}
               onClick={event => handleClick(cstID, event)}
-              onDoubleClick={() => onEdit(cstID)}
+              onDoubleClick={() => navigateCst(cstID)}
               data-tooltip-id={globals.constituenta_tooltip}
               onMouseEnter={() => setActiveCst(cst)}
             >
diff --git a/rsconcept/frontend/src/pages/RSFormPage/MenuRSTabs.tsx b/rsconcept/frontend/src/pages/RSFormPage/MenuRSTabs.tsx
index 04e674e9..59d53e18 100644
--- a/rsconcept/frontend/src/pages/RSFormPage/MenuRSTabs.tsx
+++ b/rsconcept/frontend/src/pages/RSFormPage/MenuRSTabs.tsx
@@ -1,9 +1,18 @@
 'use client';
 
-import { useGlobalOss } from '@/app/GlobalOssContext';
+import fileDownload from 'js-file-download';
+import { toast } from 'react-toastify';
+
 import { useConceptNavigation } from '@/app/Navigation/NavigationContext';
 import { urls } from '@/app/urls';
 import { useAuth } from '@/backend/auth/useAuth';
+import { useCstSubstitute } from '@/backend/rsform/useCstSubstitute';
+import { useDownloadRSForm } from '@/backend/rsform/useDownloadRSForm';
+import { useInlineSynthesis } from '@/backend/rsform/useInlineSynthesis';
+import { useIsProcessingRSForm } from '@/backend/rsform/useIsProcessingRSForm';
+import { useProduceStructure } from '@/backend/rsform/useProduceStructure';
+import { useResetAliases } from '@/backend/rsform/useResetAliases';
+import { useRestoreOrder } from '@/backend/rsform/useRestoreOrder';
 import {
   IconAdmin,
   IconAlert,
@@ -19,7 +28,6 @@ import {
   IconLibrary,
   IconMenu,
   IconNewItem,
-  IconNewVersion,
   IconOSS,
   IconOwner,
   IconQR,
@@ -35,79 +43,142 @@ import Divider from '@/components/ui/Divider';
 import Dropdown from '@/components/ui/Dropdown';
 import DropdownButton from '@/components/ui/DropdownButton';
 import useDropdown from '@/hooks/useDropdown';
-import { AccessPolicy } from '@/models/library';
+import { AccessPolicy, LocationHead } from '@/models/library';
+import { CstType } from '@/models/rsform';
 import { UserRole } from '@/models/user';
+import { useDialogsStore } from '@/stores/dialogs';
+import { useModificationStore } from '@/stores/modification';
 import { useRoleStore } from '@/stores/role';
-import { describeAccessMode, labelAccessMode, tooltips } from '@/utils/labels';
+import { EXTEOR_TRS_FILE } from '@/utils/constants';
+import { describeAccessMode, information, labelAccessMode, tooltips } from '@/utils/labels';
+import { generatePageQR, promptUnsaved, sharePage } from '@/utils/utils';
 
-import { OssTabID } from '../OssPage/OssTabs';
+import { OssTabID } from '../OssPage/OssEditContext';
 import { useRSEdit } from './RSEditContext';
 
-interface MenuRSTabsProps {
-  onDestroy: () => void;
-}
-
-function MenuRSTabs({ onDestroy }: MenuRSTabsProps) {
+function MenuRSTabs() {
   const controller = useRSEdit();
   const router = useConceptNavigation();
   const { user } = useAuth();
-  const oss = useGlobalOss();
 
   const role = useRoleStore(state => state.role);
   const setRole = useRoleStore(state => state.setRole);
+  const { isModified } = useModificationStore();
+  const isProcessing = useIsProcessingRSForm();
+
+  const { resetAliases } = useResetAliases();
+  const { restoreOrder } = useRestoreOrder();
+  const { produceStructure } = useProduceStructure();
+  const { inlineSynthesis } = useInlineSynthesis();
+  const { cstSubstitute } = useCstSubstitute();
+  const { download } = useDownloadRSForm();
+
+  const showInlineSynthesis = useDialogsStore(state => state.showInlineSynthesis);
+  const showQR = useDialogsStore(state => state.showQR);
+  const showSubstituteCst = useDialogsStore(state => state.showSubstituteCst);
+  const showClone = useDialogsStore(state => state.showCloneLibraryItem);
+  const showUpload = useDialogsStore(state => state.showUploadRSForm);
 
   const schemaMenu = useDropdown();
   const editMenu = useDropdown();
   const accessMenu = useDropdown();
 
+  // TODO: move into separate function
+  const canProduceStructure =
+    !!controller.activeCst &&
+    !!controller.activeCst.parse.typification &&
+    controller.activeCst.cst_type !== CstType.BASE &&
+    controller.activeCst.cst_type !== CstType.CONSTANT;
+
+  function calculateCloneLocation() {
+    const location = controller.schema.location;
+    const head = location.substring(0, 2) as LocationHead;
+    if (head === LocationHead.LIBRARY) {
+      return user?.is_staff ? location : LocationHead.USER;
+    }
+    if (controller.schema.owner === user?.id) {
+      return location;
+    }
+    return head === LocationHead.USER ? LocationHead.USER : location;
+  }
+
   function handleDelete() {
     schemaMenu.hide();
-    onDestroy();
+    controller.deleteSchema();
   }
 
   function handleDownload() {
     schemaMenu.hide();
-    controller.download();
+    if (isModified && !promptUnsaved()) {
+      return;
+    }
+    const fileName = (controller.schema.alias ?? 'Schema') + EXTEOR_TRS_FILE;
+    download({ itemID: controller.schema.id, version: controller.schema.version }, (data: Blob) => {
+      try {
+        fileDownload(data, fileName);
+      } catch (error) {
+        console.error(error);
+      }
+    });
   }
 
   function handleUpload() {
     schemaMenu.hide();
-    controller.promptUpload();
+    showUpload({ itemID: controller.schema.id });
   }
 
   function handleClone() {
     schemaMenu.hide();
-    controller.promptClone();
+    if (isModified && !promptUnsaved()) {
+      return;
+    }
+    showClone({
+      base: controller.schema,
+      initialLocation: calculateCloneLocation(),
+      selected: controller.selected,
+      totalCount: controller.schema.items.length
+    });
   }
 
   function handleShare() {
     schemaMenu.hide();
-    controller.share();
+    sharePage();
   }
 
   function handleShowQR() {
     schemaMenu.hide();
-    controller.showQR();
-  }
-
-  function handleCreateVersion() {
-    schemaMenu.hide();
-    controller.createVersion();
+    showQR({ target: generatePageQR() });
   }
 
   function handleReindex() {
     editMenu.hide();
-    controller.reindex();
+    resetAliases(controller.schema.id, () => toast.success(information.reindexComplete));
   }
 
   function handleRestoreOrder() {
     editMenu.hide();
-    controller.reorder();
+    restoreOrder(controller.schema.id, () => toast.success(information.reorderComplete));
   }
 
   function handleSubstituteCst() {
     editMenu.hide();
-    controller.substitute();
+    if (isModified && !promptUnsaved()) {
+      return;
+    }
+    showSubstituteCst({
+      schema: controller.schema,
+      onSubstitute: data =>
+        cstSubstitute(
+          {
+            itemID: controller.schema.id, //
+            data
+          },
+          () => {
+            controller.setSelected(prev => prev.filter(id => !data.substitutions.find(sub => sub.original === id)));
+            toast.success(information.substituteSingle);
+          }
+        )
+    });
   }
 
   function handleTemplates() {
@@ -117,12 +188,41 @@ function MenuRSTabs({ onDestroy }: MenuRSTabsProps) {
 
   function handleProduceStructure() {
     editMenu.hide();
-    controller.produceStructure();
+    if (!controller.activeCst) {
+      return;
+    }
+    if (isModified && !promptUnsaved()) {
+      return;
+    }
+    produceStructure(
+      {
+        itemID: controller.schema.id, //
+        data: { target: controller.activeCst.id }
+      },
+      cstList => {
+        toast.success(information.addedConstituents(cstList.length));
+        if (cstList.length !== 0) {
+          controller.setSelected(cstList);
+        }
+      }
+    );
   }
 
   function handleInlineSynthesis() {
     editMenu.hide();
-    controller.inlineSynthesis();
+    if (isModified && !promptUnsaved()) {
+      return;
+    }
+    showInlineSynthesis({
+      receiver: controller.schema,
+      onInlineSynthesis: data => {
+        const oldCount = controller.schema.items.length;
+        inlineSynthesis({ itemID: controller.schema.id, data }, newSchema => {
+          controller.deselectAll();
+          toast.success(information.addedConstituents(newSchema.items.length - oldCount));
+        });
+      }
+    });
   }
 
   function handleChangeMode(newMode: UserRole) {
@@ -155,7 +255,7 @@ function MenuRSTabs({ onDestroy }: MenuRSTabsProps) {
         <Dropdown isOpen={schemaMenu.isOpen}>
           <DropdownButton
             text='Поделиться'
-            titleHtml={tooltips.shareItem(controller.schema?.access_policy)}
+            titleHtml={tooltips.shareItem(controller.schema.access_policy)}
             icon={<IconShare size='1rem' className='icon-primary' />}
             onClick={handleShare}
             disabled={controller.schema?.access_policy !== AccessPolicy.PUBLIC}
@@ -174,12 +274,6 @@ function MenuRSTabs({ onDestroy }: MenuRSTabsProps) {
               onClick={handleClone}
             />
           ) : null}
-          <DropdownButton
-            text='Сохранить версию'
-            disabled={!controller.isContentEditable}
-            onClick={handleCreateVersion}
-            icon={<IconNewVersion size='1rem' className='icon-green' />}
-          />
           <DropdownButton
             text='Выгрузить в Экстеор'
             icon={<IconDownload size='1rem' className='icon-primary' />}
@@ -189,7 +283,7 @@ function MenuRSTabs({ onDestroy }: MenuRSTabsProps) {
             <DropdownButton
               text='Загрузить из Экстеор'
               icon={<IconUpload size='1rem' className='icon-red' />}
-              disabled={controller.isProcessing || controller.schema?.oss.length !== 0}
+              disabled={isProcessing || controller.schema?.oss.length !== 0}
               onClick={handleUpload}
             />
           ) : null}
@@ -197,7 +291,7 @@ function MenuRSTabs({ onDestroy }: MenuRSTabsProps) {
             <DropdownButton
               text='Удалить схему'
               icon={<IconDestroy size='1rem' className='icon-red' />}
-              disabled={controller.isProcessing || role < UserRole.OWNER}
+              disabled={isProcessing || role < UserRole.OWNER}
               onClick={handleDelete}
             />
           ) : null}
@@ -211,11 +305,11 @@ function MenuRSTabs({ onDestroy }: MenuRSTabsProps) {
               onClick={handleCreateNew}
             />
           ) : null}
-          {oss.schema ? (
+          {controller.schema.oss.length > 0 ? (
             <DropdownButton
               text='Перейти к ОСС'
               icon={<IconOSS size='1rem' className='icon-primary' />}
-              onClick={() => router.push(urls.oss(oss.schema!.id, OssTabID.GRAPH))}
+              onClick={() => router.push(urls.oss(controller.schema.oss[0].id, OssTabID.GRAPH))}
             />
           ) : null}
           <DropdownButton
@@ -225,7 +319,6 @@ function MenuRSTabs({ onDestroy }: MenuRSTabsProps) {
           />
         </Dropdown>
       </div>
-
       {!controller.isArchive && user ? (
         <div ref={editMenu.ref}>
           <Button
@@ -244,14 +337,14 @@ function MenuRSTabs({ onDestroy }: MenuRSTabsProps) {
               text='Шаблоны'
               title='Создать конституенту из шаблона'
               icon={<IconTemplates size='1rem' className='icon-green' />}
-              disabled={!controller.isContentEditable || controller.isProcessing}
+              disabled={!controller.isContentEditable || isProcessing}
               onClick={handleTemplates}
             />
             <DropdownButton
               text='Встраивание'
               titleHtml='Импортировать совокупность <br/>конституент из другой схемы'
               icon={<IconInlineSynthesis size='1rem' className='icon-green' />}
-              disabled={!controller.isContentEditable || controller.isProcessing}
+              disabled={!controller.isContentEditable || isProcessing}
               onClick={handleInlineSynthesis}
             />
 
@@ -261,21 +354,21 @@ function MenuRSTabs({ onDestroy }: MenuRSTabsProps) {
               text='Упорядочить список'
               titleHtml='Упорядочить список, исходя из <br/>логики типов и связей конституент'
               icon={<IconSortList size='1rem' className='icon-primary' />}
-              disabled={!controller.isContentEditable || controller.isProcessing}
+              disabled={!controller.isContentEditable || isProcessing}
               onClick={handleRestoreOrder}
             />
             <DropdownButton
               text='Порядковые имена'
               titleHtml='Присвоить порядковые имена <br/>и обновить выражения'
               icon={<IconGenerateNames size='1rem' className='icon-primary' />}
-              disabled={!controller.isContentEditable || controller.isProcessing}
+              disabled={!controller.isContentEditable || isProcessing}
               onClick={handleReindex}
             />
             <DropdownButton
               text='Порождение структуры'
               titleHtml='Раскрыть структуру типизации <br/>выделенной конституенты'
               icon={<IconGenerateStructure size='1rem' className='icon-primary' />}
-              disabled={!controller.isContentEditable || !controller.canProduceStructure || controller.isProcessing}
+              disabled={!controller.isContentEditable || !canProduceStructure || isProcessing}
               onClick={handleProduceStructure}
             />
             <DropdownButton
@@ -283,11 +376,12 @@ function MenuRSTabs({ onDestroy }: MenuRSTabsProps) {
               titleHtml='Заменить вхождения <br/>одной конституенты на другую'
               icon={<IconReplace size='1rem' className='icon-red' />}
               onClick={handleSubstituteCst}
-              disabled={!controller.isContentEditable || controller.isProcessing}
+              disabled={!controller.isContentEditable || isProcessing}
             />
           </Dropdown>
         </div>
       ) : null}
+      router.push(urls.schema(itemID, version), newTab);
       {controller.isArchive && user ? (
         <Button
           dense
@@ -298,10 +392,9 @@ function MenuRSTabs({ onDestroy }: MenuRSTabsProps) {
           hideTitle={accessMenu.isOpen}
           className='h-full px-2'
           icon={<IconArchive size='1.25rem' className='icon-primary' />}
-          onClick={event => controller.viewVersion(undefined, event.ctrlKey || event.metaKey)}
+          onClick={event => router.push(urls.schema(controller.schema.id), event.ctrlKey || event.metaKey)}
         />
       ) : null}
-
       {user ? (
         <div ref={accessMenu.ref}>
           <Button
diff --git a/rsconcept/frontend/src/pages/RSFormPage/RSEditContext.tsx b/rsconcept/frontend/src/pages/RSFormPage/RSEditContext.tsx
index 30f2ef0f..92759797 100644
--- a/rsconcept/frontend/src/pages/RSFormPage/RSEditContext.tsx
+++ b/rsconcept/frontend/src/pages/RSFormPage/RSEditContext.tsx
@@ -1,69 +1,55 @@
 'use client';
 
-import fileDownload from 'js-file-download';
 import { createContext, useContext, useEffect, useState } from 'react';
 import { toast } from 'react-toastify';
 
 import { useConceptNavigation } from '@/app/Navigation/NavigationContext';
 import { urls } from '@/app/urls';
 import { useAuth } from '@/backend/auth/useAuth';
-import { useSetAccessPolicy } from '@/backend/library/useSetAccessPolicy';
-import { useSetEditors } from '@/backend/library/useSetEditors';
-import { useSetLocation } from '@/backend/library/useSetLocation';
-import { useSetOwner } from '@/backend/library/useSetOwner';
-import { useFindPredecessor } from '@/backend/oss/useFindPredecessor';
-import { ICstCreateDTO, ICstRenameDTO, ICstUpdateDTO, IInlineSynthesisDTO } from '@/backend/rsform/api';
+import { useDeleteItem } from '@/backend/library/useDeleteItem';
+import { ICstCreateDTO } from '@/backend/rsform/api';
 import { useCstCreate } from '@/backend/rsform/useCstCreate';
 import { useCstDelete } from '@/backend/rsform/useCstDelete';
 import { useCstMove } from '@/backend/rsform/useCstMove';
-import { useCstRename } from '@/backend/rsform/useCstRename';
-import { useCstSubstitute } from '@/backend/rsform/useCstSubstitute';
-import { useCstUpdate } from '@/backend/rsform/useCstUpdate';
-import { useDownloadRSForm } from '@/backend/rsform/useDownloadRSForm';
-import { useInlineSynthesis } from '@/backend/rsform/useInlineSynthesis';
-import { useIsProcessingRSForm } from '@/backend/rsform/useIsProcessingRSForm';
-import { useProduceStructure } from '@/backend/rsform/useProduceStructure';
-import { useResetAliases } from '@/backend/rsform/useResetAliases';
-import { useRestoreOrder } from '@/backend/rsform/useRestoreOrder';
 import { useRSFormSuspense } from '@/backend/rsform/useRSForm';
-import {
-  AccessPolicy,
-  ILibraryItemEditor,
-  IVersionData,
-  LibraryItemID,
-  LocationHead,
-  VersionID
-} from '@/models/library';
-import { ICstSubstitutions } from '@/models/oss';
-import { ConstituentaID, CstType, IConstituenta, IConstituentaMeta, IRSForm, TermForm } from '@/models/rsform';
+import { ILibraryItemEditor, LibraryItemID, VersionID } from '@/models/library';
+import { ConstituentaID, CstType, IConstituenta, IRSForm } from '@/models/rsform';
 import { generateAlias } from '@/models/rsformAPI';
-import { UserID, UserRole } from '@/models/user';
+import { UserRole } from '@/models/user';
 import { useDialogsStore } from '@/stores/dialogs';
+import { useModificationStore } from '@/stores/modification';
 import { usePreferencesStore } from '@/stores/preferences';
 import { useRoleStore } from '@/stores/role';
-import { EXTEOR_TRS_FILE } from '@/utils/constants';
+import { PARAMETER, prefixes } from '@/utils/constants';
 import { information, prompts } from '@/utils/labels';
 import { promptUnsaved } from '@/utils/utils';
 
-import { RSTabID } from './RSTabs';
+import { OssTabID } from '../OssPage/OssEditContext';
+
+export enum RSTabID {
+  CARD = 0,
+  CST_LIST = 1,
+  CST_EDIT = 2,
+  TERM_GRAPH = 3
+}
 
 export interface IRSEditContext extends ILibraryItemEditor {
-  schema?: IRSForm;
+  schema: IRSForm;
   selected: ConstituentaID[];
+  activeCst?: IConstituenta;
 
   isOwned: boolean;
   isArchive: boolean;
   isMutable: boolean;
   isContentEditable: boolean;
-  isProcessing: boolean;
   isAttachedToOSS: boolean;
-  canProduceStructure: boolean;
   canDeleteSelected: boolean;
 
-  setOwner: (newOwner: UserID) => void;
-  setAccessPolicy: (newPolicy: AccessPolicy) => void;
-  promptEditors: () => void;
-  promptLocation: () => void;
+  navigateRSForm: ({ tab, activeID }: { tab: RSTabID; activeID?: ConstituentaID }) => void;
+  navigateCst: (cstID: ConstituentaID) => void;
+  navigateOss: (target: LibraryItemID, newTab?: boolean) => void;
+
+  deleteSchema: () => void;
 
   setSelected: React.Dispatch<React.SetStateAction<ConstituentaID[]>>;
   select: (target: ConstituentaID) => void;
@@ -71,35 +57,12 @@ export interface IRSEditContext extends ILibraryItemEditor {
   toggleSelect: (target: ConstituentaID) => void;
   deselectAll: () => void;
 
-  viewOSS: (target: LibraryItemID, newTab?: boolean) => void;
-  viewVersion: (version?: VersionID, newTab?: boolean) => void;
-  viewPredecessor: (target: ConstituentaID) => void;
-  createVersion: () => void;
-  restoreVersion: () => void;
-  promptEditVersions: () => void;
-
   moveUp: () => void;
   moveDown: () => void;
   createCst: (type: CstType | undefined, skipDialog: boolean, definition?: string) => void;
-  renameCst: () => void;
   cloneCst: () => void;
   promptDeleteCst: () => void;
-  editTermForms: () => void;
-
   promptTemplate: () => void;
-  promptClone: () => void;
-  promptUpload: () => void;
-  share: () => void;
-  download: () => void;
-
-  reindex: () => void;
-  reorder: () => void;
-  produceStructure: () => void;
-  inlineSynthesis: () => void;
-  substitute: () => void;
-
-  showTypeGraph: () => void;
-  showQR: () => void;
 }
 
 const RSEditContext = createContext<IRSEditContext | null>(null);
@@ -113,28 +76,11 @@ export const useRSEdit = () => {
 
 interface RSEditStateProps {
   itemID: LibraryItemID;
+  activeTab: RSTabID;
   versionID?: VersionID;
-
-  selected: ConstituentaID[];
-  isModified: boolean;
-  setSelected: React.Dispatch<React.SetStateAction<ConstituentaID[]>>;
-  activeCst?: IConstituenta;
-
-  onCreateCst?: (newCst: IConstituentaMeta) => void;
-  onDeleteCst?: (newActive?: ConstituentaID) => void;
 }
 
-export const RSEditState = ({
-  itemID,
-  versionID,
-  selected,
-  setSelected,
-  activeCst,
-  isModified,
-  onCreateCst,
-  onDeleteCst,
-  children
-}: React.PropsWithChildren<RSEditStateProps>) => {
+export const RSEditState = ({ itemID, versionID, activeTab, children }: React.PropsWithChildren<RSEditStateProps>) => {
   const router = useConceptNavigation();
   const { user } = useAuth();
   const adminMode = usePreferencesStore(state => state.adminMode);
@@ -142,72 +88,33 @@ export const RSEditState = ({
   const adjustRole = useRoleStore(state => state.adjustRole);
 
   const { schema } = useRSFormSuspense({ itemID: itemID, version: versionID });
-  const isProcessing = useIsProcessingRSForm();
-
-  const { download: downloadFile } = useDownloadRSForm();
-  const { findPredecessor } = useFindPredecessor();
-
-  const { setOwner: setItemOwner } = useSetOwner();
-  const { setLocation: setItemLocation } = useSetLocation();
-  const { setAccessPolicy: setItemAccessPolicy } = useSetAccessPolicy();
-  const { setEditors: setItemEditors } = useSetEditors();
-
-  const { cstCreate } = useCstCreate();
-  const { cstRename } = useCstRename();
-  const { cstSubstitute } = useCstSubstitute();
-  const { cstMove } = useCstMove();
-  const { cstDelete } = useCstDelete();
-  const { cstUpdate } = useCstUpdate();
-
-  const { produceStructure: produceStructureInternal } = useProduceStructure();
-  const { inlineSynthesis: inlineSynthesisInternal } = useInlineSynthesis();
-  const { restoreOrder: restoreOrderInternal } = useRestoreOrder();
-  const { resetAliases: resetAliasesInternal } = useResetAliases();
+  const { isModified } = useModificationStore();
 
   const isOwned = user?.id === schema?.owner || false;
-
   const isArchive = !!versionID;
-
-  const isMutable = role > UserRole.READER && !schema?.read_only;
+  const isMutable = role > UserRole.READER && !schema.read_only;
   const isContentEditable = isMutable && !isArchive;
-  const canDeleteSelected = selected.length > 0 && selected.every(id => !schema?.cstByID.get(id)?.is_inherited);
-  const isAttachedToOSS =
-    !!schema && schema.oss.length > 0 && (schema.stats.count_inherited > 0 || schema.items.length === 0);
+  const isAttachedToOSS = schema.oss.length > 0;
 
-  const [renameInitialData, setRenameInitialData] = useState<ICstRenameDTO>();
+  const [selected, setSelected] = useState<ConstituentaID[]>([]);
+  const canDeleteSelected = selected.length > 0 && selected.every(id => !schema.cstByID.get(id)?.is_inherited);
 
-  const showClone = useDialogsStore(state => state.showCloneLibraryItem);
-  const showCreateVersion = useDialogsStore(state => state.showCreateVersion);
-  const showEditVersions = useDialogsStore(state => state.showEditVersions);
-  const showEditEditors = useDialogsStore(state => state.showEditEditors);
-  const showEditLocation = useDialogsStore(state => state.showChangeLocation);
+  const activeCst: IConstituenta | undefined = (() => {
+    if (!schema || selected.length === 0) {
+      return undefined;
+    } else {
+      return schema.cstByID.get(selected[-1]);
+    }
+  })();
+
+  const { cstCreate } = useCstCreate();
+  const { cstMove } = useCstMove();
+  const { cstDelete } = useCstDelete();
+  const { deleteItem } = useDeleteItem();
 
   const showCreateCst = useDialogsStore(state => state.showCreateCst);
   const showDeleteCst = useDialogsStore(state => state.showDeleteCst);
-
-  const showRenameCst = useDialogsStore(state => state.showRenameCst);
-  const showEditTerm = useDialogsStore(state => state.showEditWordForms);
-
-  const showSubstituteCst = useDialogsStore(state => state.showSubstituteCst);
   const showCstTemplate = useDialogsStore(state => state.showCstTemplate);
-  const showInlineSynthesis = useDialogsStore(state => state.showInlineSynthesis);
-  const showTypeGraph = useDialogsStore(state => state.showShowTypeGraph);
-  const showUpload = useDialogsStore(state => state.showUploadRSForm);
-  const showQR = useDialogsStore(state => state.showQR);
-
-  const typeInfo = schema
-    ? schema.items.map(item => ({
-        alias: item.alias,
-        result: item.parse.typification,
-        args: item.parse.args
-      }))
-    : [];
-
-  const canProduceStructure =
-    !!activeCst &&
-    !!activeCst.parse.typification &&
-    activeCst.cst_type !== CstType.BASE &&
-    activeCst.cst_type !== CstType.CONSTANT;
 
   useEffect(
     () =>
@@ -220,79 +127,78 @@ export const RSEditState = ({
     [schema, adjustRole, isOwned, user, adminMode]
   );
 
-  function viewVersion(version?: VersionID, newTab?: boolean) {
-    router.push(urls.schema(itemID, version), newTab);
-  }
-
-  function viewPredecessor(target: ConstituentaID) {
-    findPredecessor({ target: target }, reference =>
-      router.push(
-        urls.schema_props({
-          id: reference.schema,
-          active: reference.id,
-          tab: RSTabID.CST_EDIT
-        })
-      )
-    );
-  }
-
-  function viewOSS(target: LibraryItemID, newTab?: boolean) {
+  function navigateOss(target: LibraryItemID, newTab?: boolean) {
     router.push(urls.oss(target), newTab);
   }
 
-  function restoreVersion() {
-    if (!versionID || !window.confirm(prompts.restoreArchive)) {
+  function navigateRSForm({ tab, activeID }: { tab: RSTabID; activeID?: ConstituentaID }) {
+    if (!schema) {
       return;
     }
-    model.versionRestore(versionID, () => {
-      toast.success(information.versionRestored);
-      viewVersion(undefined);
+    const data = {
+      id: schema.id,
+      tab: tab,
+      active: activeID,
+      version: versionID
+    };
+    const url = urls.schema_props(data);
+    if (activeID) {
+      if (tab === activeTab && tab !== RSTabID.CST_EDIT) {
+        router.replace(url);
+      } else {
+        router.push(url);
+      }
+    } else if (tab !== activeTab && tab === RSTabID.CST_EDIT && schema.items.length > 0) {
+      data.active = schema.items[0].id;
+      router.replace(urls.schema_props(data));
+    } else {
+      router.push(url);
+    }
+  }
+
+  function navigateCst(cstID: ConstituentaID) {
+    if (cstID !== activeCst?.id || activeTab !== RSTabID.CST_EDIT) {
+      navigateRSForm({ tab: RSTabID.CST_EDIT, activeID: cstID });
+    }
+  }
+
+  function deleteSchema() {
+    if (!schema || !window.confirm(prompts.deleteLibraryItem)) {
+      return;
+    }
+    const ossID = schema.oss.length > 0 ? schema.oss[0].id : undefined;
+    deleteItem(schema.id, () => {
+      toast.success(information.itemDestroyed);
+      if (ossID) {
+        router.push(urls.oss(ossID, OssTabID.GRAPH));
+      } else {
+        router.push(urls.library);
+      }
     });
   }
 
-  function calculateCloneLocation() {
-    if (!schema) {
-      return LocationHead.USER;
-    }
-    const location = schema.location;
-    const head = schema.location.substring(0, 2) as LocationHead;
-    if (head === LocationHead.LIBRARY) {
-      return user?.is_staff ? location : LocationHead.USER;
-    }
-    if (schema.owner === user?.id) {
-      return location;
-    }
-    return head === LocationHead.USER ? LocationHead.USER : location;
-  }
-
   function handleCreateCst(data: ICstCreateDTO) {
-    if (!schema) {
-      return;
-    }
     data.alias = data.alias || generateAlias(data.cst_type, schema);
     cstCreate({ itemID: itemID, data }, newCst => {
       toast.success(information.newConstituent(newCst.alias));
       setSelected([newCst.id]);
-      if (onCreateCst) onCreateCst(newCst);
-    });
-  }
-
-  function handleRenameCst(data: ICstRenameDTO) {
-    const oldAlias = renameInitialData?.alias ?? '';
-    cstRename({ itemID: itemID, data }, () => toast.success(information.renameComplete(oldAlias, data.alias)));
-  }
-
-  function handleSubstituteCst(data: ICstSubstitutions) {
-    cstSubstitute({ itemID: itemID, data }, () => {
-      setSelected(prev => prev.filter(id => !data.substitutions.find(sub => sub.original === id)));
-      toast.success(information.substituteSingle);
+      navigateRSForm({ tab: activeTab, activeID: newCst.id });
+      if (activeTab === RSTabID.CST_LIST) {
+        setTimeout(() => {
+          const element = document.getElementById(`${prefixes.cst_list}${newCst.alias}`);
+          if (element) {
+            element.scrollIntoView({
+              behavior: 'smooth',
+              block: 'nearest',
+              inline: 'end'
+            });
+          }
+        }, PARAMETER.refreshTimeout);
+      }
     });
   }
 
   function handleDeleteCst(deleted: ConstituentaID[]) {
-    if (!schema) {
-      return;
-    }
     const data = {
       items: deleted
     };
@@ -304,88 +210,18 @@ export const RSEditState = ({
     cstDelete({ itemID: itemID, data }, () => {
       toast.success(information.constituentsDestroyed(deletedNames));
       setSelected(nextActive ? [nextActive] : []);
-      onDeleteCst?.(nextActive);
-    });
-  }
-
-  function handleSaveWordforms(forms: TermForm[]) {
-    if (!activeCst) {
-      return;
-    }
-    const data: ICstUpdateDTO = {
-      target: activeCst.id,
-      item_data: { term_forms: forms }
-    };
-    cstUpdate({ itemID: itemID, data }, () => toast.success(information.changesSaved));
-  }
-
-  function handleCreateVersion(data: IVersionData) {
-    if (!schema) {
-      return;
-    }
-    model.versionCreate(data, () => {
-      toast.success(information.newVersion(data.version));
-    });
-  }
-
-  function handleDeleteVersion(versionID: VersionID) {
-    if (!schema) {
-      return;
-    }
-    model.versionDelete(versionID, () => {
-      toast.success(information.versionDestroyed);
-      if (versionID === versionID) {
-        viewVersion(undefined);
+      if (!nextActive) {
+        navigateRSForm({ tab: RSTabID.CST_LIST });
+      } else if (activeTab === RSTabID.CST_EDIT) {
+        navigateRSForm({ tab: activeTab, activeID: nextActive });
+      } else {
+        navigateRSForm({ tab: activeTab });
       }
     });
   }
 
-  function handleUpdateVersion(versionID: VersionID, data: IVersionData) {
-    if (!schema) {
-      return;
-    }
-    model.versionUpdate(versionID, data, () => toast.success(information.changesSaved));
-  }
-
-  const handleSetLocation = (newLocation: string) =>
-    setItemLocation({ itemID: itemID, location: newLocation }, () => toast.success(information.moveComplete));
-
-  function handleInlineSynthesis(data: IInlineSynthesisDTO) {
-    if (!schema) {
-      return;
-    }
-    const oldCount = schema.items.length;
-    inlineSynthesisInternal({ itemID: itemID, data }, newSchema => {
-      setSelected([]);
-      toast.success(information.addedConstituents(newSchema.items.length - oldCount));
-    });
-  }
-
-  function createVersion() {
-    if (!schema || (isModified && !promptUnsaved())) {
-      return;
-    }
-    showCreateVersion({
-      versions: schema.versions,
-      onCreate: handleCreateVersion,
-      selected: selected,
-      totalCount: schema.items.length
-    });
-  }
-
-  function promptEditVersions() {
-    if (!schema) {
-      return;
-    }
-    showEditVersions({
-      versions: schema.versions,
-      onDelete: handleDeleteVersion,
-      onUpdate: handleUpdateVersion
-    });
-  }
-
   function moveUp() {
-    if (!schema?.items || selected.length === 0) {
+    if (!schema.items || selected.length === 0) {
       return;
     }
     const currentIndex = schema.items.reduce((prev, cst, index) => {
@@ -407,7 +243,7 @@ export const RSEditState = ({
   }
 
   function moveDown() {
-    if (!schema?.items || selected.length === 0) {
+    if (!schema.items || selected.length === 0) {
       return;
     }
     let count = 0;
@@ -433,9 +269,6 @@ export const RSEditState = ({
   }
 
   function createCst(type: CstType | undefined, skipDialog: boolean, definition?: string) {
-    if (!schema) {
-      return;
-    }
     const targetType = type ?? activeCst?.cst_type ?? CstType.BASE;
     const data: ICstCreateDTO = {
       insert_after: activeCst?.id ?? null,
@@ -455,7 +288,7 @@ export const RSEditState = ({
   }
 
   function cloneCst() {
-    if (!activeCst || !schema) {
+    if (!activeCst) {
       return;
     }
     const data: ICstCreateDTO = {
@@ -471,213 +304,50 @@ export const RSEditState = ({
     handleCreateCst(data);
   }
 
-  function renameCst() {
-    if (!activeCst || !schema) {
-      return;
-    }
-    const data: ICstRenameDTO = {
-      target: activeCst.id,
-      alias: activeCst.alias,
-      cst_type: activeCst.cst_type
-    };
-    setRenameInitialData(data);
-    showRenameCst({
-      schema: schema,
-      initial: data,
-      allowChangeType: !activeCst.is_inherited,
-      onRename: handleRenameCst
-    });
-  }
-
-  function substitute() {
-    if (!schema || (isModified && !promptUnsaved())) {
-      return;
-    }
-    showSubstituteCst({ schema: schema, onSubstitute: handleSubstituteCst });
-  }
-
-  function inlineSynthesis() {
-    if (!schema || (isModified && !promptUnsaved())) {
-      return;
-    }
-    showInlineSynthesis({ receiver: schema, onInlineSynthesis: handleInlineSynthesis });
-  }
-
   function promptDeleteCst() {
-    if (!schema) {
-      return;
-    }
     showDeleteCst({ schema: schema, selected: selected, onDelete: handleDeleteCst });
   }
-
-  function editTermForms() {
-    if (!activeCst) {
-      return;
-    }
-    if (isModified && !promptUnsaved()) {
-      return;
-    }
-    showEditTerm({ target: activeCst, onSave: handleSaveWordforms });
-  }
-
-  function reindex() {
-    if (!itemID) {
-      return;
-    }
-    resetAliasesInternal(itemID, () => toast.success(information.reindexComplete));
-  }
-
-  function reorder() {
-    if (!itemID) {
-      return;
-    }
-    restoreOrderInternal(itemID, () => toast.success(information.reorderComplete));
-  }
-
-  function produceStructure() {
-    if (!activeCst) {
-      return;
-    }
-    if (isModified && !promptUnsaved()) {
-      return;
-    }
-    produceStructureInternal({ itemID: itemID, data: { target: activeCst.id } }, cstList => {
-      toast.success(information.addedConstituents(cstList.length));
-      if (cstList.length !== 0) {
-        setSelected(cstList);
-      }
-    });
-  }
-
-  function handleSetEditors(newEditors: UserID[]) {
-    setItemEditors({ itemID: itemID, editors: newEditors }, () => toast.success(information.changesSaved));
-  }
-
   function promptTemplate() {
-    if ((isModified && !promptUnsaved()) || !schema) {
+    if (isModified && !promptUnsaved()) {
       return;
     }
     showCstTemplate({ schema: schema, onCreate: handleCreateCst, insertAfter: activeCst?.id });
   }
 
-  function promptClone() {
-    if (!schema || (isModified && !promptUnsaved())) {
-      return;
-    }
-    showClone({
-      base: schema,
-      initialLocation: calculateCloneLocation(),
-      selected: selected,
-      totalCount: schema.items.length
-    });
-  }
-
-  function promptEditors() {
-    if (!schema) {
-      return;
-    }
-    showEditEditors({ editors: schema.editors, setEditors: handleSetEditors });
-  }
-
-  function promptLocation() {
-    if (!schema) {
-      return;
-    }
-    showEditLocation({ initial: schema.location, onChangeLocation: handleSetLocation });
-  }
-
-  function download() {
-    if ((isModified && !promptUnsaved()) || !schema) {
-      return;
-    }
-    const fileName = (schema.alias ?? 'Schema') + EXTEOR_TRS_FILE;
-    downloadFile({ itemID: itemID, version: versionID }, (data: Blob) => {
-      try {
-        fileDownload(data, fileName);
-      } catch (error) {
-        console.error(error);
-      }
-    });
-  }
-
-  function share() {
-    const currentRef = window.location.href;
-    const url = currentRef.includes('?') ? currentRef + '&share' : currentRef + '?share';
-    navigator.clipboard
-      .writeText(url)
-      .then(() => toast.success(information.linkReady))
-      .catch(console.error);
-  }
-
-  function setOwner(newOwner: UserID) {
-    setItemOwner({ itemID: itemID, owner: newOwner }, () => toast.success(information.changesSaved));
-  }
-
-  function setAccessPolicy(newPolicy: AccessPolicy) {
-    setItemAccessPolicy({ itemID: itemID, policy: newPolicy }, () => toast.success(information.changesSaved));
-  }
-
-  function generateQR(): string {
-    const currentRef = window.location.href;
-    return currentRef.includes('?') ? currentRef + '&qr' : currentRef + '?qr';
-  }
-
   return (
     <RSEditContext
       value={{
-        schema: schema,
+        schema,
         selected,
+        activeCst,
 
         isOwned,
         isArchive,
         isMutable,
         isContentEditable,
-        isProcessing,
         isAttachedToOSS,
-        canProduceStructure,
         canDeleteSelected,
 
-        setOwner,
-        setAccessPolicy,
-        promptEditors,
-        promptLocation,
+        navigateRSForm,
+        navigateCst,
 
-        setSelected: setSelected,
+        deleteSchema,
+        navigateOss,
+
+        setSelected,
         select: (target: ConstituentaID) => setSelected(prev => [...prev, target]),
         deselect: (target: ConstituentaID) => setSelected(prev => prev.filter(id => id !== target)),
         toggleSelect: (target: ConstituentaID) =>
           setSelected(prev => (prev.includes(target) ? prev.filter(id => id !== target) : [...prev, target])),
         deselectAll: () => setSelected([]),
 
-        viewOSS,
-        viewVersion,
-        viewPredecessor,
-        createVersion,
-        restoreVersion,
-        promptEditVersions,
-
         moveUp,
         moveDown,
         createCst,
         cloneCst,
-        renameCst,
         promptDeleteCst,
-        editTermForms,
 
-        promptTemplate,
-        promptClone,
-        promptUpload: () => showUpload({ itemID: model.itemID! }),
-        download,
-        share,
-
-        reindex,
-        reorder,
-        inlineSynthesis,
-        produceStructure,
-        substitute,
-
-        showTypeGraph: () => showTypeGraph({ items: typeInfo }),
-        showQR: () => showQR({ target: generateQR() })
+        promptTemplate
       }}
     >
       {children}
diff --git a/rsconcept/frontend/src/pages/RSFormPage/RSFormPage.tsx b/rsconcept/frontend/src/pages/RSFormPage/RSFormPage.tsx
index a8e69d35..0361d578 100644
--- a/rsconcept/frontend/src/pages/RSFormPage/RSFormPage.tsx
+++ b/rsconcept/frontend/src/pages/RSFormPage/RSFormPage.tsx
@@ -1,21 +1,81 @@
 'use client';
 
+import axios from 'axios';
+import { ErrorBoundary } from 'react-error-boundary';
 import { useParams } from 'react-router';
 
-import { RSFormState } from '@/context/RSFormContext';
+import { useBlockNavigation, useConceptNavigation } from '@/app/Navigation/NavigationContext';
+import { urls } from '@/app/urls';
+import InfoError, { ErrorData } from '@/components/info/InfoError';
+import Divider from '@/components/ui/Divider';
+import TextURL from '@/components/ui/TextURL';
 import useQueryStrings from '@/hooks/useQueryStrings';
+import { LibraryItemID } from '@/models/library';
+import { useModificationStore } from '@/stores/modification';
 
+import { RSEditState, RSTabID } from './RSEditContext';
 import RSTabs from './RSTabs';
 
 function RSFormPage() {
-  const params = useParams();
+  const router = useConceptNavigation();
   const query = useQueryStrings();
-  const version = query.get('v') ?? undefined;
+  const params = useParams();
+  const itemID = params.id ? Number(params.id) : undefined;
+  const version = query.get('v') ? Number(query.get('v')) : undefined;
+  const activeTab = query.get('tab') ? (Number(query.get('tab')) as RSTabID) : RSTabID.CARD;
+
+  const { isModified } = useModificationStore();
+  useBlockNavigation(isModified);
+
+  if (!itemID) {
+    router.replace(urls.page404);
+    return null;
+  }
   return (
-    <RSFormState itemID={params.id ?? ''} versionID={version}>
-      <RSTabs />
-    </RSFormState>
+    <ErrorBoundary
+      FallbackComponent={({ error }) => (
+        <ProcessError error={error as ErrorData} isArchive={!!version} itemID={itemID} />
+      )}
+    >
+      <RSEditState itemID={itemID} versionID={version} activeTab={activeTab}>
+        <RSTabs />
+      </RSEditState>
+    </ErrorBoundary>
   );
 }
 
 export default RSFormPage;
+
+// ====== Internals =========
+function ProcessError({
+  error,
+  isArchive,
+  itemID
+}: {
+  error: ErrorData;
+  isArchive: boolean;
+  itemID?: LibraryItemID;
+}): React.ReactElement {
+  if (axios.isAxiosError(error) && error.response) {
+    if (error.response.status === 404) {
+      return (
+        <div className='flex flex-col items-center p-2 mx-auto'>
+          <p>{`Концептуальная схема с указанным идентификатором ${isArchive ? 'и версией ' : ''}отсутствует`}</p>
+          <div className='flex justify-center'>
+            <TextURL text='Библиотека' href='/library' />
+            {isArchive ? <Divider vertical margins='mx-3' /> : null}
+            {isArchive ? <TextURL text='Актуальная версия' href={`/rsforms/${itemID}`} /> : null}
+          </div>
+        </div>
+      );
+    } else if (error.response.status === 403) {
+      return (
+        <div className='flex flex-col items-center p-2 mx-auto'>
+          <p>Владелец ограничил доступ к данной схеме</p>
+          <TextURL text='Библиотека' href='/library' />
+        </div>
+      );
+    }
+  }
+  return <InfoError error={error} />;
+}
diff --git a/rsconcept/frontend/src/pages/RSFormPage/RSTabs.tsx b/rsconcept/frontend/src/pages/RSFormPage/RSTabs.tsx
index 0b6844c4..add1fe01 100644
--- a/rsconcept/frontend/src/pages/RSFormPage/RSTabs.tsx
+++ b/rsconcept/frontend/src/pages/RSFormPage/RSTabs.tsx
@@ -1,79 +1,43 @@
 'use client';
 
-import axios from 'axios';
 import clsx from 'clsx';
-import { useEffect, useState } from 'react';
-import { useParams } from 'react-router';
+import { useEffect } from 'react';
 import { TabList, TabPanel, Tabs } from 'react-tabs';
-import { toast } from 'react-toastify';
 
-import { useGlobalOss } from '@/app/GlobalOssContext';
-import { useBlockNavigation, useConceptNavigation } from '@/app/Navigation/NavigationContext';
-import { urls } from '@/app/urls';
-import { useDeleteItem } from '@/backend/library/useDeleteItem';
-import InfoError, { ErrorData } from '@/components/info/InfoError';
-import Divider from '@/components/ui/Divider';
-import Loader from '@/components/ui/Loader';
+import { useConceptNavigation } from '@/app/Navigation/NavigationContext';
 import Overlay from '@/components/ui/Overlay';
 import TabLabel from '@/components/ui/TabLabel';
-import TextURL from '@/components/ui/TextURL';
 import useQueryStrings from '@/hooks/useQueryStrings';
-import { LibraryItemID } from '@/models/library';
-import { ConstituentaID, IConstituenta, IConstituentaMeta } from '@/models/rsform';
 import { useAppLayoutStore } from '@/stores/appLayout';
-import { PARAMETER, prefixes } from '@/utils/constants';
-import { information, labelVersion, prompts } from '@/utils/labels';
+import { useModificationStore } from '@/stores/modification';
+import { labelVersion } from '@/utils/labels';
 
-import { OssTabID } from '../OssPage/OssTabs';
 import EditorConstituenta from './EditorConstituenta';
 import EditorRSForm from './EditorRSFormCard';
 import EditorRSList from './EditorRSList';
 import EditorTermGraph from './EditorTermGraph';
 import MenuRSTabs from './MenuRSTabs';
-import { RSEditState } from './RSEditContext';
-
-export enum RSTabID {
-  CARD = 0,
-  CST_LIST = 1,
-  CST_EDIT = 2,
-  TERM_GRAPH = 3
-}
+import { RSTabID, useRSEdit } from './RSEditContext';
 
 function RSTabs() {
-  const params = useParams();
-  const router = useConceptNavigation();
   const query = useQueryStrings();
+  const router = useConceptNavigation();
   const activeTab = query.get('tab') ? (Number(query.get('tab')) as RSTabID) : RSTabID.CARD;
-  const itemID = params.id ? Number(params.id) : undefined;
-  const version = query.get('v') ? Number(query.get('v')) : undefined;
   const cstQuery = query.get('active');
 
   const hideFooter = useAppLayoutStore(state => state.hideFooter);
-  const { schema, loading, errorLoading, isArchive } = useRSFormControl();
-  const { deleteItem } = useDeleteItem();
-  const oss = useGlobalOss();
+  const { setIsModified } = useModificationStore();
+  const { schema, selected, setSelected, navigateRSForm } = useRSEdit();
 
-  const [isModified, setIsModified] = useState(false);
-  useBlockNavigation(isModified);
-
-  const [selected, setSelected] = useState<ConstituentaID[]>([]);
-  const activeCst: IConstituenta | undefined = (() => {
-    if (!schema || selected.length === 0) {
-      return undefined;
-    } else {
-      return schema.cstByID.get(selected.at(-1)!);
-    }
-  })();
+  useEffect(() => setIsModified(false), [setIsModified]);
 
   useEffect(() => {
-    if (schema) {
-      const oldTitle = document.title;
-      document.title = schema.title;
-      return () => {
-        document.title = oldTitle;
-      };
-    }
-  }, [schema, schema?.title]);
+    const oldTitle = document.title;
+    document.title = schema.title;
+    return () => {
+      document.title = oldTitle;
+    };
+  }, [schema?.title]);
 
   useEffect(() => {
     hideFooter(activeTab !== RSTabID.CARD);
@@ -89,30 +53,6 @@ function RSTabs() {
     return () => hideFooter(false);
   }, [activeTab, cstQuery, setSelected, schema, hideFooter, setIsModified]);
 
-  function navigateTab(tab: RSTabID, activeID?: ConstituentaID) {
-    if (!schema) {
-      return;
-    }
-    const url = urls.schema_props({
-      id: schema.id,
-      tab: tab,
-      active: activeID,
-      version: version
-    });
-    if (activeID) {
-      if (tab === activeTab && tab !== RSTabID.CST_EDIT) {
-        router.replace(url);
-      } else {
-        router.push(url);
-      }
-    } else if (tab !== activeTab && tab === RSTabID.CST_EDIT && schema.items.length > 0) {
-      activeID = schema.items[0].id;
-      router.replace(url);
-    } else {
-      router.push(url);
-    }
-  }
-
   function onSelectTab(index: number, last: number, event: Event) {
     if (last === index) {
       return;
@@ -129,160 +69,54 @@ function RSTabs() {
         }
       }
     }
-    navigateTab(index, selected.length > 0 ? selected.at(-1) : undefined);
-  }
-
-  function onCreateCst(newCst: IConstituentaMeta) {
-    navigateTab(activeTab, newCst.id);
-    if (activeTab === RSTabID.CST_LIST) {
-      setTimeout(() => {
-        const element = document.getElementById(`${prefixes.cst_list}${newCst.alias}`);
-        if (element) {
-          element.scrollIntoView({
-            behavior: 'smooth',
-            block: 'nearest',
-            inline: 'end'
-          });
-        }
-      }, PARAMETER.refreshTimeout);
-    }
-  }
-
-  function onDeleteCst(newActive?: ConstituentaID) {
-    if (!newActive) {
-      navigateTab(RSTabID.CST_LIST);
-    } else if (activeTab === RSTabID.CST_EDIT) {
-      navigateTab(activeTab, newActive);
-    } else {
-      navigateTab(activeTab);
-    }
-  }
-
-  function onOpenCst(cstID: ConstituentaID) {
-    if (cstID !== activeCst?.id || activeTab !== RSTabID.CST_EDIT) {
-      navigateTab(RSTabID.CST_EDIT, cstID);
-    }
-  }
-
-  function onDestroySchema() {
-    if (!schema || !window.confirm(prompts.deleteLibraryItem)) {
-      return;
-    }
-    const backToOSS = oss.schema?.schemas.includes(schema.id);
-    deleteItem(schema.id, () => {
-      toast.success(information.itemDestroyed);
-      if (backToOSS) {
-        oss
-          .invalidate()
-          .then(() => router.push(urls.oss(oss.schema!.id, OssTabID.GRAPH)))
-          .catch(console.error);
-      } else {
-        router.push(urls.library);
-      }
-    });
+    navigateRSForm({ tab: index, activeID: selected.length > 0 ? selected.at(-1) : undefined });
   }
 
   return (
-    <RSEditState
-      selected={selected}
-      setSelected={setSelected}
-      activeCst={activeCst}
-      isModified={isModified}
-      onCreateCst={onCreateCst}
-      onDeleteCst={onDeleteCst}
-    >
-      {loading ? <Loader /> : null}
-      {errorLoading ? <ProcessError error={errorLoading} isArchive={isArchive} itemID={itemID} /> : null}
-      {schema && !loading ? (
-        <Tabs
-          selectedIndex={activeTab}
-          onSelect={onSelectTab}
-          defaultFocus
-          selectedTabClassName='clr-selected'
-          className='flex flex-col mx-auto min-w-fit'
-        >
-          <Overlay position='top-0 right-1/2 translate-x-1/2' layer='z-sticky'>
-            <TabList
-              className={clsx('mx-auto w-fit', 'flex items-stretch', 'border-b-2 border-x-2 divide-x-2', 'bg-prim-200')}
-            >
-              <MenuRSTabs onDestroy={onDestroySchema} />
+    <>
+      <Tabs
+        selectedIndex={activeTab}
+        onSelect={onSelectTab}
+        defaultFocus
+        selectedTabClassName='clr-selected'
+        className='flex flex-col mx-auto min-w-fit'
+      >
+        <Overlay position='top-0 right-1/2 translate-x-1/2' layer='z-sticky'>
+          <TabList
+            className={clsx('mx-auto w-fit', 'flex items-stretch', 'border-b-2 border-x-2 divide-x-2', 'bg-prim-200')}
+          >
+            <MenuRSTabs />
 
-              <TabLabel label='Карточка' titleHtml={`${schema.title ?? ''}<br />Версия: ${labelVersion(schema)}`} />
-              <TabLabel
-                label='Содержание'
-                titleHtml={`Конституент: ${schema.stats?.count_all ?? 0}<br />Ошибок: ${
-                  schema.stats?.count_errors ?? 0
-                }`}
-              />
-              <TabLabel label='Редактор' />
-              <TabLabel label='Граф термов' />
-            </TabList>
-          </Overlay>
+            <TabLabel label='Карточка' titleHtml={`${schema.title ?? ''}<br />Версия: ${labelVersion(schema)}`} />
+            <TabLabel
+              label='Содержание'
+              titleHtml={`Конституент: ${schema.stats?.count_all ?? 0}<br />Ошибок: ${schema.stats?.count_errors ?? 0}`}
+            />
+            <TabLabel label='Редактор' />
+            <TabLabel label='Граф термов' />
+          </TabList>
+        </Overlay>
 
-          <div className='overflow-x-hidden'>
-            <TabPanel>
-              <EditorRSForm
-                isModified={isModified} //
-                setIsModified={setIsModified}
-                onDestroy={onDestroySchema}
-              />
-            </TabPanel>
+        <div className='overflow-x-hidden'>
+          <TabPanel>
+            <EditorRSForm />
+          </TabPanel>
 
-            <TabPanel>
-              <EditorRSList onOpenEdit={onOpenCst} />
-            </TabPanel>
+          <TabPanel>
+            <EditorRSList />
+          </TabPanel>
 
-            <TabPanel>
-              <EditorConstituenta
-                isModified={isModified}
-                setIsModified={setIsModified}
-                activeCst={activeCst}
-                onOpenEdit={onOpenCst}
-              />
-            </TabPanel>
+          <TabPanel>
+            <EditorConstituenta />
+          </TabPanel>
 
-            <TabPanel>
-              <EditorTermGraph onOpenEdit={onOpenCst} />
-            </TabPanel>
-          </div>
-        </Tabs>
-      ) : null}
-    </RSEditState>
+          <TabPanel>
+            <EditorTermGraph />
+          </TabPanel>
+        </div>
+      </Tabs>
+    </>
   );
 }
 
 export default RSTabs;
-
-// ====== Internals =========
-function ProcessError({
-  error,
-  isArchive,
-  itemID
-}: {
-  error: ErrorData;
-  isArchive: boolean;
-  itemID?: LibraryItemID;
-}): React.ReactElement {
-  if (axios.isAxiosError(error) && error.response) {
-    if (error.response.status === 404) {
-      return (
-        <div className='flex flex-col items-center p-2 mx-auto'>
-          <p>{`Концептуальная схема с указанным идентификатором ${isArchive ? 'и версией ' : ''}отсутствует`}</p>
-          <div className='flex justify-center'>
-            <TextURL text='Библиотека' href='/library' />
-            {isArchive ? <Divider vertical margins='mx-3' /> : null}
-            {isArchive ? <TextURL text='Актуальная версия' href={`/rsforms/${itemID}`} /> : null}
-          </div>
-        </div>
-      );
-    } else if (error.response.status === 403) {
-      return (
-        <div className='flex flex-col items-center p-2 mx-auto'>
-          <p>Владелец ограничил доступ к данной схеме</p>
-          <TextURL text='Библиотека' href='/library' />
-        </div>
-      );
-    }
-  }
-  return <InfoError error={error} />;
-}
diff --git a/rsconcept/frontend/src/pages/RSFormPage/ViewConstituents/ViewConstituents.tsx b/rsconcept/frontend/src/pages/RSFormPage/ViewConstituents/ViewConstituents.tsx
index 6455e64a..90f2518a 100644
--- a/rsconcept/frontend/src/pages/RSFormPage/ViewConstituents/ViewConstituents.tsx
+++ b/rsconcept/frontend/src/pages/RSFormPage/ViewConstituents/ViewConstituents.tsx
@@ -4,12 +4,13 @@ import clsx from 'clsx';
 import { useState } from 'react';
 
 import useWindowSize from '@/hooks/useWindowSize';
-import { ConstituentaID, IConstituenta, IRSForm } from '@/models/rsform';
+import { IConstituenta } from '@/models/rsform';
 import { UserRole } from '@/models/user';
 import { useFitHeight } from '@/stores/appLayout';
 import { useRoleStore } from '@/stores/role';
 import { PARAMETER } from '@/utils/constants';
 
+import { useRSEdit } from '../RSEditContext';
 import ConstituentsSearch from './ConstituentsSearch';
 import TableSideConstituents from './TableSideConstituents';
 
@@ -19,16 +20,14 @@ const COLUMN_DENSE_SEARCH_THRESHOLD = 1100;
 interface ViewConstituentsProps {
   expression: string;
   isBottom?: boolean;
-  activeCst?: IConstituenta;
-  schema?: IRSForm;
-  onOpenEdit: (cstID: ConstituentaID) => void;
   isMounted: boolean;
 }
 
-function ViewConstituents({ expression, schema, activeCst, isBottom, onOpenEdit, isMounted }: ViewConstituentsProps) {
+function ViewConstituents({ expression, isBottom, isMounted }: ViewConstituentsProps) {
   const windowSize = useWindowSize();
   const role = useRoleStore(state => state.role);
   const listHeight = useFitHeight(!isBottom ? '8.2rem' : role !== UserRole.READER ? '42rem' : '35rem', '10rem');
+  const { schema, activeCst, navigateCst } = useRSEdit();
 
   const [filteredData, setFilteredData] = useState<IConstituenta[]>(schema?.items ?? []);
 
@@ -60,7 +59,7 @@ function ViewConstituents({ expression, schema, activeCst, isBottom, onOpenEdit,
         maxHeight={listHeight}
         items={filteredData}
         activeCst={activeCst}
-        onOpenEdit={onOpenEdit}
+        onOpenEdit={navigateCst}
         autoScroll={!isBottom}
       />
     </div>
diff --git a/rsconcept/frontend/src/stores/modification.ts b/rsconcept/frontend/src/stores/modification.ts
new file mode 100644
index 00000000..30c9a1c2
--- /dev/null
+++ b/rsconcept/frontend/src/stores/modification.ts
@@ -0,0 +1,11 @@
+import { create } from 'zustand';
+
+interface ModificationStore {
+  isModified: boolean;
+  setIsModified: (value: boolean) => void;
+}
+
+export const useModificationStore = create<ModificationStore>()(set => ({
+  isModified: false,
+  setIsModified: value => set({ isModified: value })
+}));
diff --git a/rsconcept/frontend/src/utils/utils.ts b/rsconcept/frontend/src/utils/utils.ts
index 31f8008b..be484e0d 100644
--- a/rsconcept/frontend/src/utils/utils.ts
+++ b/rsconcept/frontend/src/utils/utils.ts
@@ -3,10 +3,11 @@
  */
 
 import axios, { AxiosError, AxiosHeaderValue, AxiosResponse } from 'axios';
+import { toast } from 'react-toastify';
 
 import { AliasMapping } from '@/models/rslang';
 
-import { prompts } from './labels';
+import { information, prompts } from './labels';
 
 /**
  * Checks if arguments is Node.
@@ -202,3 +203,23 @@ export function convertToCSV(targetObj: object[]): Blob {
 
   return new Blob([csvContent], { type: 'text/csv;charset=utf-8;' });
 }
+
+/**
+ * Generates a QR code for the current page.
+ */
+export function generatePageQR(): string {
+  const currentRef = window.location.href;
+  return currentRef.includes('?') ? currentRef + '&qr' : currentRef + '?qr';
+}
+
+/**
+ * Copies sharable link to the current page.
+ */
+export function sharePage() {
+  const currentRef = window.location.href;
+  const url = currentRef.includes('?') ? currentRef + '&share' : currentRef + '?share';
+  navigator.clipboard
+    .writeText(url)
+    .then(() => toast.success(information.linkReady))
+    .catch(console.error);
+}