diff --git a/rsconcept/frontend/src/components/select/ConstituentaMultiPicker.tsx b/rsconcept/frontend/src/components/select/ConstituentaMultiPicker.tsx
index d4d747d0..505151fc 100644
--- a/rsconcept/frontend/src/components/select/ConstituentaMultiPicker.tsx
+++ b/rsconcept/frontend/src/components/select/ConstituentaMultiPicker.tsx
@@ -94,11 +94,11 @@ function ConstituentaMultiPicker({ id, schema, prefixID, rows, selected, setSele
 
   return (
     <div>
-      <div className='flex gap-3 items-end mb-3'>
+      <div className='flex items-end gap-3 mb-3'>
         <span className='w-[24ch] select-none whitespace-nowrap'>
           Выбраны {selected.length} из {schema?.items.length ?? 0}
         </span>
-        <div className='flex gap-6 w-full text-sm'>
+        <div className='flex w-full gap-6 text-sm'>
           <Button
             text='Поставщики'
             title='Добавить все конституенты, от которых зависят выбранные'
diff --git a/rsconcept/frontend/src/components/select/ConstituentaSelector.tsx b/rsconcept/frontend/src/components/select/ConstituentaSelector.tsx
index d302f3e5..d45b30f9 100644
--- a/rsconcept/frontend/src/components/select/ConstituentaSelector.tsx
+++ b/rsconcept/frontend/src/components/select/ConstituentaSelector.tsx
@@ -1,5 +1,6 @@
 'use client';
 
+import clsx from 'clsx';
 import { useCallback, useMemo } from 'react';
 
 import { CstMatchMode } from '@/models/miscellaneous';
@@ -7,15 +8,16 @@ import { ConstituentaID, IConstituenta } from '@/models/rsform';
 import { matchConstituenta } from '@/models/rsformAPI';
 import { describeConstituenta, describeConstituentaTerm } from '@/utils/labels';
 
+import { CProps } from '../props';
 import SelectSingle from '../ui/SelectSingle';
 
-interface ConstituentaSelectorProps {
+interface ConstituentaSelectorProps extends CProps.Styling {
   items?: IConstituenta[];
   value?: IConstituenta;
   onSelectValue: (newValue?: IConstituenta) => void;
 }
 
-function ConstituentaSelector({ items, value, onSelectValue }: ConstituentaSelectorProps) {
+function ConstituentaSelector({ className, items, value, onSelectValue, ...restProps }: ConstituentaSelectorProps) {
   const options = useMemo(() => {
     return (
       items?.map(cst => ({
@@ -35,12 +37,13 @@ function ConstituentaSelector({ items, value, onSelectValue }: ConstituentaSelec
 
   return (
     <SelectSingle
-      className='w-[20rem] text-ellipsis'
+      className={clsx('text-ellipsis', className)}
       options={options}
       value={{ value: value?.id, label: value ? `${value.alias}: ${describeConstituentaTerm(value)}` : '' }}
       onChange={data => onSelectValue(items?.find(cst => cst.id === data?.value))}
       // @ts-expect-error: TODO: use type definitions from react-select in filter object
       filterOption={filter}
+      {...restProps}
     />
   );
 }
diff --git a/rsconcept/frontend/src/dialogs/DlgInlineSynthesis/ConstituentsTab.tsx b/rsconcept/frontend/src/dialogs/DlgInlineSynthesis/ConstituentsTab.tsx
index 8d013630..277263ab 100644
--- a/rsconcept/frontend/src/dialogs/DlgInlineSynthesis/ConstituentsTab.tsx
+++ b/rsconcept/frontend/src/dialogs/DlgInlineSynthesis/ConstituentsTab.tsx
@@ -19,7 +19,7 @@ function ConstituentsTab({ schema, error, loading, selected, setSelected }: Cons
     <DataLoader id='dlg-constituents-tab' isLoading={loading} error={error} hasNoData={!schema}>
       <ConstituentaMultiPicker
         schema={schema}
-        rows={16}
+        rows={14}
         prefixID={prefixes.cst_inline_synth_list}
         selected={selected}
         setSelected={setSelected}
diff --git a/rsconcept/frontend/src/dialogs/DlgInlineSynthesis/DlgInlineSynthesis.tsx b/rsconcept/frontend/src/dialogs/DlgInlineSynthesis/DlgInlineSynthesis.tsx
index 9c18925d..baca12a7 100644
--- a/rsconcept/frontend/src/dialogs/DlgInlineSynthesis/DlgInlineSynthesis.tsx
+++ b/rsconcept/frontend/src/dialogs/DlgInlineSynthesis/DlgInlineSynthesis.tsx
@@ -1,14 +1,14 @@
 'use client';
 
 import clsx from 'clsx';
-import { useMemo, useState } from 'react';
+import { useEffect, useMemo, useState } from 'react';
 import { TabList, TabPanel, Tabs } from 'react-tabs';
 
 import Modal, { ModalProps } from '@/components/ui/Modal';
 import TabLabel from '@/components/ui/TabLabel';
 import useRSFormDetails from '@/hooks/useRSFormDetails';
 import { LibraryItemID } from '@/models/library';
-import { ICstSubstituteData, IRSForm, IRSFormInlineData } from '@/models/rsform';
+import { IRSForm, IRSFormInlineData, ISubstitution } from '@/models/rsform';
 
 import ConstituentsTab from './ConstituentsTab';
 import SchemaTab from './SchemaTab';
@@ -30,11 +30,11 @@ function DlgInlineSynthesis({ hideWindow, receiver, onInlineSynthesis }: DlgInli
 
   const [donorID, setDonorID] = useState<LibraryItemID | undefined>(undefined);
   const [selected, setSelected] = useState<LibraryItemID[]>([]);
-  const [substitutions, setSubstitutions] = useState<ICstSubstituteData[]>([]);
+  const [substitutions, setSubstitutions] = useState<ISubstitution[]>([]);
 
   const source = useRSFormDetails({ target: donorID ? String(donorID) : undefined });
 
-  const validated = useMemo(() => false, []);
+  const validated = useMemo(() => !!source.schema && selected.length > 0, [source.schema, selected]);
 
   function handleSubmit() {
     if (!source.schema) {
@@ -44,16 +44,22 @@ function DlgInlineSynthesis({ hideWindow, receiver, onInlineSynthesis }: DlgInli
       source: source.schema?.id,
       receiver: receiver.id,
       items: selected,
-      substitutions: substitutions
+      substitutions: substitutions.map(item => ({
+        original: item.deleteRight ? item.rightCst.id : item.leftCst.id,
+        substitution: item.deleteRight ? item.leftCst.id : item.rightCst.id,
+        transfer_term: !item.deleteRight && item.takeLeftTerm
+      }))
     };
     onInlineSynthesis(data);
   }
 
+  useEffect(() => setSelected(source.schema ? source.schema?.items.map(cst => cst.id) : []), [source.schema]);
+
   return (
     <Modal
       header='Импорт концептуальной схем'
       submitText='Добавить конституенты'
-      className='w-[40rem] h-[40rem] px-6'
+      className='w-[40rem] h-[36rem] px-6'
       hideWindow={hideWindow}
       canSubmit={validated}
       onSubmit={handleSubmit}
@@ -88,6 +94,7 @@ function DlgInlineSynthesis({ hideWindow, receiver, onInlineSynthesis }: DlgInli
           <SubstitutionsTab
             receiver={receiver}
             source={source.schema}
+            selected={selected}
             loading={source.loading}
             substitutions={substitutions}
             setSubstitutions={setSubstitutions}
diff --git a/rsconcept/frontend/src/dialogs/DlgInlineSynthesis/SchemaTab.tsx b/rsconcept/frontend/src/dialogs/DlgInlineSynthesis/SchemaTab.tsx
index e5085eb9..3207db1a 100644
--- a/rsconcept/frontend/src/dialogs/DlgInlineSynthesis/SchemaTab.tsx
+++ b/rsconcept/frontend/src/dialogs/DlgInlineSynthesis/SchemaTab.tsx
@@ -9,7 +9,7 @@ import { LibraryItemID } from '@/models/library';
 
 interface SchemaTabProps {
   selected?: LibraryItemID;
-  setSelected: React.Dispatch<LibraryItemID | undefined>;
+  setSelected: (newValue: LibraryItemID) => void;
 }
 
 function SchemaTab({ selected, setSelected }: SchemaTabProps) {
@@ -18,7 +18,7 @@ function SchemaTab({ selected, setSelected }: SchemaTabProps) {
 
   return (
     <div className='flex flex-col'>
-      <div className='flex gap-6 items-center'>
+      <div className='flex items-center gap-6'>
         <span className='select-none'>Выбрана</span>
         <TextInput
           id='dlg_selected_schema_title'
@@ -30,7 +30,7 @@ function SchemaTab({ selected, setSelected }: SchemaTabProps) {
           dense
         />
       </div>
-      <SchemaPicker rows={16} value={selected} onSelectValue={setSelected} />
+      <SchemaPicker rows={15} value={selected} onSelectValue={setSelected} />
     </div>
   );
 }
diff --git a/rsconcept/frontend/src/dialogs/DlgInlineSynthesis/SubstitutionsTab.tsx b/rsconcept/frontend/src/dialogs/DlgInlineSynthesis/SubstitutionsTab.tsx
index 53805fe0..7fb7459c 100644
--- a/rsconcept/frontend/src/dialogs/DlgInlineSynthesis/SubstitutionsTab.tsx
+++ b/rsconcept/frontend/src/dialogs/DlgInlineSynthesis/SubstitutionsTab.tsx
@@ -1,18 +1,165 @@
 'use client';
 
-import { ICstSubstituteData, IRSForm } from '@/models/rsform';
+import { useState } from 'react';
+import { LuLocate, LuLocateOff, LuPower, LuPowerOff, LuReplace } from 'react-icons/lu';
+
+import { ErrorData } from '@/components/info/InfoError';
+import ConstituentaSelector from '@/components/select/ConstituentaSelector';
+import Button from '@/components/ui/Button';
+import Label from '@/components/ui/Label';
+import MiniButton from '@/components/ui/MiniButton';
+import Overlay from '@/components/ui/Overlay';
+import DataLoader from '@/components/wrap/DataLoader';
+import { ConstituentaID, IConstituenta, IRSForm, ISubstitution } from '@/models/rsform';
+import { prefixes } from '@/utils/constants';
+
+import SubstitutionsTable from './SubstitutionsTable';
 
 interface SubstitutionsTabProps {
   receiver?: IRSForm;
   source?: IRSForm;
+  selected: ConstituentaID[];
+
   loading?: boolean;
-  substitutions: ICstSubstituteData[];
-  setSubstitutions: React.Dispatch<ICstSubstituteData[]>;
+  error?: ErrorData;
+
+  substitutions: ISubstitution[];
+  setSubstitutions: React.Dispatch<React.SetStateAction<ISubstitution[]>>;
 }
 
-// { source, receiver, loading, substitutions, setSubstitutions }: SubstitutionsTabProps
-function SubstitutionsTab(props: SubstitutionsTabProps) {
-  return <>3 - {props.loading}</>;
+function SubstitutionsTab({
+  source,
+  receiver,
+  selected,
+
+  error,
+  loading,
+
+  substitutions,
+  setSubstitutions
+}: SubstitutionsTabProps) {
+  const [leftCst, setLeftCst] = useState<IConstituenta | undefined>(undefined);
+  const [rightCst, setRightCst] = useState<IConstituenta | undefined>(undefined);
+  const [deleteRight, setDeleteRight] = useState(false);
+  const [takeLeftTerm, setTakeLeftTerm] = useState(false);
+
+  const toggleDelete = () => setDeleteRight(prev => !prev);
+  const toggleTerm = () => setTakeLeftTerm(prev => !prev);
+
+  function addSubstitution() {
+    if (!leftCst || !rightCst) {
+      return;
+    }
+    const newSubstitution: ISubstitution = {
+      leftCst: leftCst,
+      rightCst: rightCst,
+      deleteRight: deleteRight,
+      takeLeftTerm: takeLeftTerm
+    };
+    setSubstitutions([
+      newSubstitution,
+      ...substitutions.filter(
+        item =>
+          (!item.deleteRight && item.leftCst.id !== leftCst.id) ||
+          (item.deleteRight && item.rightCst.id !== rightCst.id)
+      )
+    ]);
+  }
+
+  return (
+    <DataLoader id='dlg-substitutions-tab' className='cc-column' isLoading={loading} error={error} hasNoData={!source}>
+      <div className='flex items-end justify-between'>
+        <div>
+          <Overlay className='flex select-none'>
+            <MiniButton
+              title='Сохранить конституенту'
+              noHover
+              onClick={toggleDelete}
+              icon={
+                deleteRight ? (
+                  <LuPower size='1rem' className='clr-text-green' />
+                ) : (
+                  <LuPowerOff size='1rem' className='clr-text-red' />
+                )
+              }
+            />
+            <MiniButton
+              title='Сохранить термин'
+              noHover
+              onClick={toggleTerm}
+              icon={
+                takeLeftTerm ? (
+                  <LuLocate size='1rem' className='clr-text-green' />
+                ) : (
+                  <LuLocateOff size='1rem' className='clr-text-red' />
+                )
+              }
+            />
+          </Overlay>
+          <Label text='Импортируемая схема' />
+          <ConstituentaSelector
+            className='w-[15rem] mt-1'
+            items={source?.items.filter(cst => selected.includes(cst.id))}
+            value={leftCst}
+            onSelectValue={setLeftCst}
+          />
+        </div>
+
+        <Button
+          title='Добавить в таблицу отождествлений'
+          className='h-[2.4rem] w-[5rem]'
+          icon={<LuReplace size='1.25rem' className='icon-primary' />}
+          disabled={!leftCst || !rightCst}
+          onClick={addSubstitution}
+        />
+
+        <div>
+          <Overlay className='flex select-none'>
+            <MiniButton
+              title='Сохранить конституенту'
+              noHover
+              onClick={toggleDelete}
+              icon={
+                !deleteRight ? (
+                  <LuPower size='1rem' className='clr-text-green' />
+                ) : (
+                  <LuPowerOff size='1rem' className='clr-text-red' />
+                )
+              }
+            />
+            <MiniButton
+              title='Сохранить термин'
+              noHover
+              onClick={toggleTerm}
+              icon={
+                !takeLeftTerm ? (
+                  <LuLocate size='1rem' className='clr-text-green' />
+                ) : (
+                  <LuLocateOff size='1rem' className='clr-text-red' />
+                )
+              }
+            />
+          </Overlay>
+          <Label text='Текущая схема' />
+          <ConstituentaSelector
+            className='w-[15rem] mt-1'
+            items={receiver?.items}
+            value={rightCst}
+            onSelectValue={setRightCst}
+          />
+        </div>
+      </div>
+
+      <h2>Таблица отождествлений</h2>
+
+      <SubstitutionsTable
+        items={substitutions}
+        setItems={setSubstitutions}
+        rows={10}
+        prefixID={prefixes.cst_inline_synth_substitutes}
+      />
+    </DataLoader>
+  );
 }
 
 export default SubstitutionsTab;
diff --git a/rsconcept/frontend/src/dialogs/DlgInlineSynthesis/SubstitutionsTable.tsx b/rsconcept/frontend/src/dialogs/DlgInlineSynthesis/SubstitutionsTable.tsx
new file mode 100644
index 00000000..28b0107a
--- /dev/null
+++ b/rsconcept/frontend/src/dialogs/DlgInlineSynthesis/SubstitutionsTable.tsx
@@ -0,0 +1,130 @@
+'use client';
+
+import { useCallback, useMemo } from 'react';
+import { BiChevronLeft, BiChevronRight, BiFirstPage, BiLastPage, BiX } from 'react-icons/bi';
+
+import ConstituentaBadge from '@/components/info/ConstituentaBadge';
+import DataTable, { createColumnHelper } from '@/components/ui/DataTable';
+import MiniButton from '@/components/ui/MiniButton';
+import { useConceptTheme } from '@/context/ThemeContext';
+import { ISubstitution } from '@/models/rsform';
+import { describeConstituenta } from '@/utils/labels';
+
+interface SubstitutionsTableProps {
+  prefixID: string;
+  rows?: number;
+  items: ISubstitution[];
+  setItems: React.Dispatch<React.SetStateAction<ISubstitution[]>>;
+}
+
+function SubstitutionIcon({ item }: { item: ISubstitution }) {
+  if (item.deleteRight) {
+    if (item.takeLeftTerm) {
+      return <BiChevronRight size='1.2rem' />;
+    } else {
+      return <BiLastPage size='1.2rem' />;
+    }
+  } else {
+    if (item.takeLeftTerm) {
+      return <BiFirstPage size='1.2rem' />;
+    } else {
+      return <BiChevronLeft size='1.2rem' />;
+    }
+  }
+}
+
+const columnHelper = createColumnHelper<ISubstitution>();
+
+function SubstitutionsTable({ items, rows, setItems, prefixID }: SubstitutionsTableProps) {
+  const { colors } = useConceptTheme();
+
+  const handleDeleteRow = useCallback(
+    (row: number) => {
+      setItems(prev => {
+        const newItems: ISubstitution[] = [];
+        prev.forEach((item, index) => {
+          if (index !== row) {
+            newItems.push(item);
+          }
+        });
+        return newItems;
+      });
+    },
+    [setItems]
+  );
+
+  const columns = useMemo(
+    () => [
+      columnHelper.accessor(item => describeConstituenta(item.leftCst), {
+        id: 'left_text',
+        header: 'Описание',
+        size: 1000,
+        cell: props => <div className='text-xs text-ellipsis'>{props.getValue()}</div>
+      }),
+      columnHelper.accessor(item => item.leftCst.alias, {
+        id: 'left_alias',
+        header: 'Имя',
+        size: 65,
+        cell: props => (
+          <ConstituentaBadge theme={colors} value={props.row.original.leftCst} prefixID={`${prefixID}_1_`} />
+        )
+      }),
+      columnHelper.display({
+        id: 'status',
+        header: '',
+        size: 40,
+        cell: props => <SubstitutionIcon item={props.row.original} />
+      }),
+      columnHelper.accessor(item => item.rightCst.alias, {
+        id: 'right_alias',
+        header: 'Имя',
+        size: 65,
+        cell: props => (
+          <ConstituentaBadge theme={colors} value={props.row.original.rightCst} prefixID={`${prefixID}_2_`} />
+        )
+      }),
+      columnHelper.accessor(item => describeConstituenta(item.rightCst), {
+        id: 'right_text',
+        header: 'Описание',
+        size: 1000,
+        cell: props => <div className='text-xs text-ellipsis'>{props.getValue()}</div>
+      }),
+      columnHelper.display({
+        id: 'actions',
+        size: 50,
+        minSize: 50,
+        maxSize: 50,
+        cell: props => (
+          <MiniButton
+            noHover
+            title='Удалить'
+            icon={<BiX size='1rem' className='icon-red' />}
+            onClick={() => handleDeleteRow(props.row.index)}
+          />
+        )
+      })
+    ],
+    [handleDeleteRow, colors, prefixID]
+  );
+
+  return (
+    <DataTable
+      dense
+      noFooter
+      className='mb-2 overflow-y-auto border select-none'
+      rows={rows}
+      contentHeight='1.3rem'
+      data={items}
+      columns={columns}
+      headPosition='0'
+      noDataComponent={
+        <span className='p-2 text-center min-h-[2rem]'>
+          <p>Список пуст</p>
+          <p>Добавьте отождествление</p>
+        </span>
+      }
+    />
+  );
+}
+
+export default SubstitutionsTable;
diff --git a/rsconcept/frontend/src/dialogs/DlgSubstituteCst.tsx b/rsconcept/frontend/src/dialogs/DlgSubstituteCst.tsx
index b88c36c4..ddaa1c83 100644
--- a/rsconcept/frontend/src/dialogs/DlgSubstituteCst.tsx
+++ b/rsconcept/frontend/src/dialogs/DlgSubstituteCst.tsx
@@ -44,18 +44,28 @@ function DlgSubstituteCst({ hideWindow, onSubstitute }: DlgSubstituteCstProps) {
       hideWindow={hideWindow}
       canSubmit={canSubmit}
       onSubmit={handleSubmit}
-      className={clsx('w-[30rem]', 'px-6 py-3 flex flex-col gap-3 justify-center items-center')}
+      className={clsx('w-[25rem]', 'px-6 py-3 flex flex-col gap-3 justify-center items-center')}
     >
       <FlexColumn>
         <Label text='Удаляемая конституента' />
-        <ConstituentaSelector items={schema?.items} value={original} onSelectValue={setOriginal} />
+        <ConstituentaSelector
+          className='w-[20rem]'
+          items={schema?.items}
+          value={original}
+          onSelectValue={setOriginal}
+        />
       </FlexColumn>
 
       <LuReplace size='3rem' className='icon-primary' />
 
       <FlexColumn>
         <Label text='Подставляемая конституента' />
-        <ConstituentaSelector items={schema?.items} value={substitution} onSelectValue={setSubstitution} />
+        <ConstituentaSelector
+          className='w-[20rem]'
+          items={schema?.items}
+          value={substitution}
+          onSelectValue={setSubstitution}
+        />
       </FlexColumn>
       <Checkbox
         className='mt-3'
diff --git a/rsconcept/frontend/src/models/rsform.ts b/rsconcept/frontend/src/models/rsform.ts
index 975b4c60..75ea4e9a 100644
--- a/rsconcept/frontend/src/models/rsform.ts
+++ b/rsconcept/frontend/src/models/rsform.ts
@@ -154,6 +154,16 @@ export interface ICstSubstituteData {
   transfer_term: boolean;
 }
 
+/**
+ * Represents single substitution for synthesis table.
+ */
+export interface ISubstitution {
+  leftCst: IConstituenta;
+  rightCst: IConstituenta;
+  deleteRight: boolean;
+  takeLeftTerm: boolean;
+}
+
 /**
  * Represents data response when creating {@link IConstituenta}.
  */
diff --git a/rsconcept/frontend/src/utils/constants.ts b/rsconcept/frontend/src/utils/constants.ts
index 22a995fd..dad0f1e6 100644
--- a/rsconcept/frontend/src/utils/constants.ts
+++ b/rsconcept/frontend/src/utils/constants.ts
@@ -93,7 +93,8 @@ export const globalIDs = {
 export const prefixes = {
   page_size: 'page_size_',
   cst_list: 'cst_list_',
-  cst_inline_synth_list: 'cst_inline_synth_list',
+  cst_inline_synth_list: 'cst_inline_synth_list_',
+  cst_inline_synth_substitutes: 'cst_inline_synth_substitutes_',
   cst_side_table: 'cst_side_table_',
   cst_hidden_list: 'cst_hidden_list_',
   cst_modal_list: 'cst_modal_list_',