diff --git a/.vscode/launch.json b/.vscode/launch.json
index 99ff9e1f..dcd074d6 100644
--- a/.vscode/launch.json
+++ b/.vscode/launch.json
@@ -52,6 +52,26 @@
             "request": "launch",
             "script": "${workspaceFolder}/rsconcept/RunServer.ps1",
             "args": ["-freshStart"]
-        }
+        },
+        {
+            "name": "FE-Debug",
+            "type": "node",
+            "request": "launch",
+            "runtimeExecutable": "${workspaceFolder}/rsconcept/frontend/node_modules/.bin/jest",
+            "args": [
+                "${fileBasenameNoExtension}",
+                "--runInBand",
+                "--watch",
+                "--coverage=false",
+                "--no-cache"
+            ],
+            "cwd": "${workspaceFolder}/rsconcept/frontend",
+            "console": "integratedTerminal",
+            "internalConsoleOptions": "neverOpen",
+            "sourceMaps": true,
+            "windows": {
+                "program": "${workspaceFolder}/rsconcept/frontend/node_modules/jest/bin/jest"
+            }
+        },
     ]
 }
\ No newline at end of file
diff --git a/rsconcept/frontend/src/pages/RSFormPage/EditorTermGraph.tsx b/rsconcept/frontend/src/pages/RSFormPage/EditorTermGraph.tsx
index 54f1600c..218c93f0 100644
--- a/rsconcept/frontend/src/pages/RSFormPage/EditorTermGraph.tsx
+++ b/rsconcept/frontend/src/pages/RSFormPage/EditorTermGraph.tsx
@@ -1,35 +1,64 @@
-import { useCallback, useMemo, useRef, useState } from 'react';
-import { darkTheme, GraphCanvas, GraphCanvasRef, GraphEdge, GraphNode, LayoutTypes, lightTheme, useSelection } from 'reagraph';
+import { useCallback, useEffect, useMemo, useRef, useState } from 'react';
+import { darkTheme, GraphCanvas, GraphCanvasRef, GraphEdge, GraphNode, LayoutTypes, lightTheme, Sphere, useSelection } from 'reagraph';
 
 import Button from '../../components/Common/Button';
 import Checkbox from '../../components/Common/Checkbox';
 import ConceptSelect from '../../components/Common/ConceptSelect';
+import { ArrowsRotateIcon } from '../../components/Icons';
 import { useRSForm } from '../../context/RSFormContext';
 import { useConceptTheme } from '../../context/ThemeContext';
 import useLocalStorage from '../../hooks/useLocalStorage';
 import { resources } from '../../utils/constants';
+import { Graph } from '../../utils/Graph';
 import { GraphLayoutSelector,mapLayoutLabels } from '../../utils/staticUI';
 
 function EditorTermGraph() {
   const { schema } = useRSForm();
   const { darkMode } = useConceptTheme();
   const [ layout, setLayout ] = useLocalStorage<LayoutTypes>('graph_layout', 'forceatlas2');
+
+  const [ filtered, setFiltered ] = useState<Graph>(new Graph());
   const [ orbit, setOrbit ] = useState(false);
+  const [ noHermits, setNoHermits ] = useLocalStorage('graph_no_hermits', true);
+  const [ noTransitive, setNoTransitive ] = useLocalStorage('graph_no_transitive', false);
   const graphRef = useRef<GraphCanvasRef | null>(null);
 
+  useEffect(() => {
+    if (!schema) {
+      setFiltered(new Graph());
+      return;
+    }
+    const graph = schema.graph.clone();
+    if (noHermits) {
+      graph.removeIsolated();
+    }
+    if (noTransitive) {
+      graph.transitiveReduction();
+    }
+    setFiltered(graph);
+  }, [schema, noHermits, noTransitive]);
+
   const nodes: GraphNode[] = useMemo(() => {
-    return schema?.items.map(cst => { 
-      return {
-        id: String(cst.id),
-        label: (cst.term.resolved || cst.term.raw) ? `${cst.alias}: ${cst.term.resolved || cst.term.raw}` : cst.alias
-      }}
-    ) ?? [];
-  }, [schema?.items]);
+    const result: GraphNode[] = [];
+    if (!schema) {
+      return result;
+    }
+    filtered.nodes.forEach(node => {
+      const cst = schema.items.find(cst => cst.id === node.id);
+      if (cst) {
+        result.push({
+          id: String(node.id),
+          label: cst.term.resolved ? `${cst.alias}: ${cst.term.resolved}` : cst.alias
+        });
+      }
+    });
+    return result;
+  }, [schema, filtered.nodes]);
 
   const edges: GraphEdge[] = useMemo(() => {
     const result: GraphEdge[] = [];
     let edgeID = 1;
-    schema?.graph.nodes.forEach(source => {
+    filtered.nodes.forEach(source => {
       source.outputs.forEach(target => {
         result.push({
           id: String(edgeID),
@@ -40,7 +69,7 @@ function EditorTermGraph() {
       });
     });
     return result;
-  }, [schema?.graph]);
+  }, [filtered.nodes]);
 
   const handleCenter = useCallback(() => {
     graphRef.current?.resetControls();
@@ -64,22 +93,36 @@ function EditorTermGraph() {
 
   return (<>
     <div className='relative w-full'>
-    <div className='absolute top-0 left-0 z-20 px-3 py-2 w-[12rem] flex flex-col gap-2'>
-      <ConceptSelect
-        options={GraphLayoutSelector}
-        placeholder='Выберите тип'
-        values={layout ? [{ value: layout, label: mapLayoutLabels.get(layout) }] : []}
-        onChange={data => { setLayout(data.length > 0 ? data[0].value : GraphLayoutSelector[0].value); }}
-      />
+    <div className='absolute top-0 left-0 z-20 py-2 w-[12rem] flex flex-col'>
+      <div className='flex items-center gap-1 w-[15rem]'>
+        <Button
+          icon={<ArrowsRotateIcon size={8} />}
+          dense
+          tooltip='Центрировать изображение'
+          widthClass='h-full'
+          onClick={handleCenter}
+        />
+        <ConceptSelect
+          options={GraphLayoutSelector}
+          placeholder='Выберите тип'
+          values={layout ? [{ value: layout, label: mapLayoutLabels.get(layout) }] : []}
+          onChange={data => { setLayout(data.length > 0 ? data[0].value : GraphLayoutSelector[0].value); }}
+        />
+      </div>
       <Checkbox
         label='Анимация вращения' 
-        widthClass='w-full'
         value={orbit} 
-        onChange={ event => setOrbit(event.target.checked) }/>
-      <Button
-        text='Центрировать'
-        dense
-        onClick={handleCenter}
+        onChange={ event => setOrbit(event.target.checked) }
+      />
+      <Checkbox
+        label='Удалить несвязанные' 
+        value={noHermits} 
+        onChange={ event => setNoHermits(event.target.checked) }
+      />
+      <Checkbox
+        label='Транзитивная редукция' 
+        value={noTransitive} 
+        onChange={ event => setNoTransitive(event.target.checked) }
       />
     </div>
     </div>
@@ -99,9 +142,12 @@ function EditorTermGraph() {
         onNodePointerOver={onNodePointerOver}
         onNodePointerOut={onNodePointerOut}
         cameraMode={ orbit ? 'orbit' : layout.includes('3d') ? 'rotate' : 'pan'}
-        layoutOverrides={ layout.includes('tree') ? { nodeLevelRatio: 1 } : undefined }
+        layoutOverrides={ layout.includes('tree') ? { nodeLevelRatio: 3 } : undefined }
         labelFontUrl={resources.graph_font}
         theme={darkMode ? darkTheme : lightTheme}
+        renderNode={({ node, ...rest }) => (
+          <Sphere {...rest} node={node} />
+        )}
       />
     </div>
     </div>
diff --git a/rsconcept/frontend/src/utils/Graph.test.ts b/rsconcept/frontend/src/utils/Graph.test.ts
index 6f69b67d..80861ed8 100644
--- a/rsconcept/frontend/src/utils/Graph.test.ts
+++ b/rsconcept/frontend/src/utils/Graph.test.ts
@@ -20,6 +20,51 @@ describe('Testing Graph constuction', () => {
     expect([... graph.nodes.keys()]).toStrictEqual([1, 2, 3, 4]);
     expect([... graph.nodes.get(1)!.outputs]).toStrictEqual([2]);
   });
+
+  test('cloning', () => {
+    const graph = new Graph([[1, 2], [3], [4, 1]]);
+    const clone = graph.clone();
+    expect([... graph.nodes.keys()]).toStrictEqual([... clone.nodes.keys()]);
+    expect([... graph.nodes.values()]).toStrictEqual([... clone.nodes.values()]);
+
+    clone.removeNode(3);
+    expect(clone.nodes.get(3)).toBeUndefined();
+    expect(graph.nodes.get(3)).not.toBeUndefined();
+  });
+});
+
+describe('Testing Graph editing', () => {
+  test('removing edges should not remove nodes', () => {
+    const graph = new Graph([[1, 2], [3], [4, 1]]);
+    expect(graph.hasEdge(4, 1)).toBeTruthy();
+
+    graph.removeEdge(5, 0);
+    graph.removeEdge(4, 1);
+    
+    expect([... graph.nodes.keys()]).toStrictEqual([1, 2, 3, 4]);
+    expect(graph.hasEdge(4, 1)).toBeFalsy();
+  });
+
+  test('removing isolated nodes', () => {
+    const graph = new Graph([[9, 1], [9, 2], [2, 1], [4, 3], [5, 9], [7], [8]]);
+    graph.removeIsolated()
+    expect([... graph.nodes.keys()]).toStrictEqual([9, 1, 2, 4, 3, 5]);
+  });
+
+  test('transitive reduction', () => {
+    const graph = new Graph([[1, 3], [1, 2], [2, 3]]);
+    graph.transitiveReduction()
+    expect(graph.hasEdge(1, 2)).toBeTruthy();
+    expect(graph.hasEdge(2, 3)).toBeTruthy();
+    expect(graph.hasEdge(1, 3)).toBeFalsy();
+  });
+});
+
+describe('Testing Graph sort', () => {
+  test('topological order', () => {
+    const graph = new Graph([[9, 1], [9, 2], [2, 1], [4, 3], [5, 9]]);
+    expect(graph.tolopogicalOrder()).toStrictEqual([5, 4, 3, 9, 1, 2]);
+  });
 });
 
 describe('Testing Graph queries', () => {
diff --git a/rsconcept/frontend/src/utils/Graph.ts b/rsconcept/frontend/src/utils/Graph.ts
index 19b00f04..c060c3d9 100644
--- a/rsconcept/frontend/src/utils/Graph.ts
+++ b/rsconcept/frontend/src/utils/Graph.ts
@@ -10,6 +10,13 @@ export class GraphNode {
     this.inputs = [];
   }
 
+  clone(): GraphNode {
+    const result = new GraphNode(this.id);
+    result.outputs = [... this.outputs];
+    result.inputs = [... this.inputs];
+    return result;
+  }
+
   addOutput(node: number): void {
     this.outputs.push(node);
   }
@@ -45,6 +52,12 @@ export class Graph {
     });
   }
 
+  clone(): Graph {
+    const result = new Graph();
+    this.nodes.forEach(node => result.nodes.set(node.id, node.clone()));
+    return result;
+  }
+
   addNode(target: number): GraphNode {
     let node = this.nodes.get(target);
     if (!node) {
@@ -67,6 +80,16 @@ export class Graph {
     return nodeToRemove;
   }
 
+  removeIsolated(): GraphNode[] {
+    const result: GraphNode[] = [];
+    this.nodes.forEach(node => {
+      if (node.outputs.length === 0 && node.inputs.length === 0) {
+        this.nodes.delete(node.id);
+      }
+    });
+    return result;
+  }
+
   addEdge(source: number, destination: number): void {
     const sourceNode = this.addNode(source);
     const destinationNode = this.addNode(destination);
@@ -83,6 +106,14 @@ export class Graph {
     }
   }
 
+  hasEdge(source: number, destination: number): boolean {
+    const sourceNode = this.nodes.get(source);
+    if (!sourceNode) {
+      return false;
+    }
+    return !!sourceNode.outputs.find(id => id === destination);
+  }
+
   expandOutputs(origin: number[]): number[] {
     const result: number[] = [];
     const marked = new Map<number, boolean>();
@@ -143,27 +174,63 @@ export class Graph {
     return result;
   }  
 
-  visitDFS(visitor: (node: GraphNode) => void) {
-    const visited: Map<number, boolean> = new Map();
+  tolopogicalOrder(): number[] {
+    const result: number[] = [];
+    const marked = new Map<number, boolean>();
     this.nodes.forEach(node => {
-      if (!visited.has(node.id)) {
-        this.depthFirstSearch(node, visited, visitor);
+      if (marked.get(node.id)) {
+        return;
       }
+      const toVisit: number[] = [node.id];
+      let index = 0;
+      while (toVisit.length > 0) {
+        const item = toVisit[index];
+        if (marked.get(item)) {
+          if (!result.find(id => id ===item)) {
+            result.push(item);
+          } 
+          toVisit.splice(index, 1);
+          index -= 1;
+        } else {
+          marked.set(item, true);
+          const itemNode = this.nodes.get(item);
+          if (itemNode && itemNode.outputs.length > 0) {
+            itemNode.outputs.forEach(child => {
+              if (!marked.get(child)) {
+                toVisit.push(child);
+              }
+            });
+          }
+          if (index + 1 < toVisit.length) {
+            index += 1;
+          }
+        }
+      }
+      marked
     });
+    return result.reverse();
   }
 
-  private depthFirstSearch(
-    node: GraphNode,
-    visited: Map<number, boolean>,
-    visitor: (node: GraphNode) => void)
-  : void {
-    visited.set(node.id, true);
-    visitor(node);
-    node.outputs.forEach((item) => {
-      if (!visited.has(item)) {
-        const childNode = this.nodes.get(item)!;
-        this.depthFirstSearch(childNode, visited, visitor);
+  transitiveReduction() {
+    const order = this.tolopogicalOrder();
+    const marked = new Map<number, boolean>();
+    order.forEach(nodeID => {
+      if (marked.get(nodeID)) {
+        return;
+      }
+      const stack: {id: number, parents: number[]}[] = [];
+      stack.push({id: nodeID, parents: []});
+      while (stack.length > 0) {
+        const item = stack.splice(0, 1)[0];
+        const node = this.nodes.get(item.id);
+        if (node) {
+          node.outputs.forEach(child => {
+            item.parents.forEach(parent => this.removeEdge(parent, child));
+            stack.push({id: child, parents: [item.id, ...item.parents]})
+          });
+        }
+        marked.set(item.id, true)
       }
     });
-  }
+  } 
 }
diff --git a/rsconcept/frontend/src/utils/utils.tsx b/rsconcept/frontend/src/utils/utils.tsx
index 9adcb45c..eb884f99 100644
--- a/rsconcept/frontend/src/utils/utils.tsx
+++ b/rsconcept/frontend/src/utils/utils.tsx
@@ -7,3 +7,11 @@ export function assertIsNode(e: EventTarget | null): asserts e is Node {
 export async function delay(ms: number) {
   return await new Promise(resolve => setTimeout(resolve, ms));
 }
+
+export function trimString(target: string, maxLen: number): string {
+  if (target.length < maxLen) {
+    return target;
+  } else {
+    return target.substring(0, maxLen) + '...';
+  }
+}
\ No newline at end of file