diff --git a/src/App.css b/src/App.css
index b9d355d..54e8654 100644
--- a/src/App.css
+++ b/src/App.css
@@ -40,3 +40,7 @@
 .read-the-docs {
   color: #888;
 }
+
+.ant-tree-list-holder {
+  border-radius: 0;
+}
\ No newline at end of file
diff --git a/src/App.tsx b/src/App.tsx
index 42f850f..9be117a 100644
--- a/src/App.tsx
+++ b/src/App.tsx
@@ -1,42 +1,83 @@
-import React, { createContext, useEffectEvent, useState } from 'react';
-import { Layout, theme, Breadcrumb } from 'antd';
+import React, { createContext, useEffect, useEffectEvent, useState } from 'react';
+import { Layout, theme, Breadcrumb, Button, Space, Tree, type TreeDataNode } from 'antd';
 import Graph, { GraphModel } from './components/Graph';
 import type { BreadcrumbItemType } from 'antd/es/breadcrumb/Breadcrumb';
 import { useKeysdownStore } from './stores/ArrayStore';
+import {
+  MenuFoldOutlined,
+  MenuUnfoldOutlined
+} from '@ant-design/icons';
+import { useGraphLayersTreeStore } from './stores/TreeStore';
 
-const { Content } = Layout;
+const { Header, Content, Sider } = Layout;
 
 const App: React.FC = () => {
   const {
-    token: { colorBgContainer, borderRadiusLG },
+    token: { colorBgContainer },
   } = theme.useToken();
   const [graphLevel, setGraphLevel] = useState<BreadcrumbItemType[]>([])
+  const [collapsed, setCollapsed] = useState(true);
   const addKey = useKeysdownStore(state => state.add);
   const removeKey = useKeysdownStore(state => state.remove);
   const onKeydown = useEffectEvent((key: string) => {
-    addKey(key);    
+    addKey(key);
   });
   const onKeyUp = useEffectEvent((key: string) => {
     removeKey(key);
   })
-  document.addEventListener('keydown', (ev) => {    
+  document.addEventListener('keydown', (ev) => {
     onKeydown(ev.key)
   });
-  document.addEventListener('keyup', (ev) =>  {
+  document.addEventListener('keyup', (ev) => {
     onKeyUp(ev.key);
-  })
+  });
+  const treeData = useGraphLayersTreeStore(store => store.tree);
+
+  useEffect(() => {
+    console.info(treeData);
+  }, [treeData])
 
   return (
     <Layout>
+      <Sider trigger={null} collapsible collapsed={collapsed} collapsedWidth={0} style={{
+        background: colorBgContainer,
+      }}>
+        <Header style={{ padding: 0 }}></Header>
+        <Tree
+          checkable
+          treeData={treeData}
+          defaultExpandAll={true}
+          style={{
+            borderRadius: 0
+          }}
+        />
+      </Sider>
       <Layout>
-        <Breadcrumb style={{ margin: '8px 0 0 16px' }} items={graphLevel} />
+        <Header style={{ padding: 0, background: colorBgContainer }}>
+          <Space>
+            <div style={{ background: '#001529' }}>
+              <Button
+                type="text"
+                icon={collapsed ? <MenuUnfoldOutlined /> : <MenuFoldOutlined />}
+                onClick={() => setCollapsed(!collapsed)}
+                style={{
+                  fontSize: '16px',
+                  width: 32,
+                  height: 32,
+                  color: colorBgContainer,
+                }}
+              />
+            </div>
+            <Breadcrumb items={graphLevel} />
+          </Space>
+        </Header>
         <Content
           style={{
             margin: '8px 16px',
             padding: 24,
             minHeight: 280,
             background: colorBgContainer,
-            borderRadius: borderRadiusLG,
+            borderRadius: '6px'
           }}
         >
           <Graph setGraphPath={setGraphLevel} />
diff --git a/src/components/Graph.tsx b/src/components/Graph.tsx
index 4be463e..8478318 100644
--- a/src/components/Graph.tsx
+++ b/src/components/Graph.tsx
@@ -190,12 +190,7 @@ export default function Graph({ setGraphPath }: { setGraphPath: React.Dispatch<R
   }
 
   function getRandomWords(count: number) {
-    const wordList = [
-      "apple", "river", "mountain", "sky", "storm", "ocean", "forest", "dream",
-      "stone", "flame", "shadow", "cloud", "leaf", "wind", "fire", "earth",
-      "flower", "bird", "light", "night", "sun", "rain", "snow", "tree",
-      "wolf", "star", "sand", "wave", "heart", "path"
-    ];
+    const wordList = ['Apple', 'Sun', 'Flame', 'Earth', 'Forest', 'Dream', 'Sky', 'Shadow', 'Flower', 'Ocean', 'River', 'Path', 'Sand', 'Night', 'Star', 'Rain', 'Light', 'Tree', 'Wave', 'Storm', 'Stone', 'Snow', 'Cloud', 'Heart', 'Mountain', 'Leaf', 'Bird', 'Wind', 'Fire', 'Wolf'];
 
     return wordList
       .sort(() => Math.random() - 0.5)
diff --git a/src/components/NodeContextMenu.tsx b/src/components/NodeContextMenu.tsx
index bbaa1c4..6cdc0ce 100644
--- a/src/components/NodeContextMenu.tsx
+++ b/src/components/NodeContextMenu.tsx
@@ -3,6 +3,7 @@ import { defaultGraph, graphContext, type EdgeModel, type NodeContext } from "./
 import { useContext } from "react";
 import { cloneDeep } from "lodash";
 import { useGraphsStore } from "../stores/GraphsStore";
+import { useGraphLayersTreeStore } from "../stores/TreeStore";
 
 const items: MenuProps['items'] = [
   {
@@ -39,6 +40,7 @@ export default function NodeContextMenu({
 
   const graphContextValue = useContext(graphContext)!;
   const graphsById = useGraphsStore((s) => s.graphsById);
+  const addTreeNode = useGraphLayersTreeStore(store => store.add);
 
   function contextMenuOpenChange(open: boolean) {
     if (!open) {
@@ -64,9 +66,10 @@ export default function NodeContextMenu({
         if (!selectedGraph) {
           selectedGraph = defaultGraph();
           graphsById.set(nodeContext.nodeId, selectedGraph);
+          const parenNodeId = graphContextValue.graphId === 'main' ? undefined : graphContextValue.graphId;
+          addTreeNode(nodeContext, parenNodeId);
         }
-
-        console.info(graphsById)
+        
         graphContextValue.setGraph(selectedGraph);
 
         break;
diff --git a/src/stores/TreeStore.tsx b/src/stores/TreeStore.tsx
new file mode 100644
index 0000000..5ec8470
--- /dev/null
+++ b/src/stores/TreeStore.tsx
@@ -0,0 +1,115 @@
+import type { TreeDataNode } from "antd";
+import { cloneDeep } from "lodash";
+import React from "react";
+import { create } from "zustand";
+import type { NodeContext } from "../components/Graph";
+
+export interface TreeStore {
+  nodesFlatById: Map<React.Key, TreeDataNode>,
+  parentIdByChildId: Map<React.Key, string>;
+  rootNodes: TreeDataNode[];
+  tree: TreeDataNode[];
+  add: (childNode: NodeContext, parentNodeId: string | undefined) => void;
+  remove: (nodeId: string) => void;
+}
+
+export const useGraphLayersTreeStore = create<TreeStore>()((set, get) => ({
+  nodesFlatById: new Map<React.Key, TreeDataNode>(),
+  parentIdByChildId: new Map<React.Key, string>(),
+  rootNodes: [],
+  tree: [],
+  add: (childNodeContext, parentNodeId) => set((state) => {
+    const childNode = nodeContextToTreeNode(childNodeContext);
+    if (parentNodeId) {
+      const parentNode = state.nodesFlatById.get(parentNodeId);
+      if (parentNode) {
+        parentNode.children = parentNode.children ? [...parentNode.children, childNode] : [childNode];
+        const parentIdByChildId = new Map(state.parentIdByChildId);
+        parentIdByChildId.set(childNode.key, parentNodeId);
+        const nodesFlatById = new Map(state.nodesFlatById);
+        nodesFlatById.set(childNode.key, childNode);
+
+        const newState = {
+          nodesFlatById: nodesFlatById,
+          parentIdByChildId: parentIdByChildId,
+          rootNodes: [...state.rootNodes],
+          tree: createTree([...state.rootNodes], nodesFlatById)
+        }
+
+        return newState;
+      } else {
+        throw Error(`There is no parent node with id: ${parentNodeId}`)
+      }
+    } else {
+      const nodesFlatById = new Map(state.nodesFlatById);
+      nodesFlatById.set(childNode.key, childNode);
+      const newState = {
+        nodesFlatById: nodesFlatById,
+        parentIdByChildId: state.parentIdByChildId,
+        rootNodes: [...state.rootNodes, childNode],
+        tree: createTree([...state.rootNodes], nodesFlatById)
+      }
+      return newState;
+    }
+  }),
+  remove: (nodeId) => set((state) => {
+    const node = state.nodesFlatById.get(nodeId);
+
+    if (!node) {
+      return state;
+    }
+
+    const nodesFlatById = new Map(state.nodesFlatById);
+    nodesFlatById.delete(nodeId);
+    const parentNodeId = state.parentIdByChildId.get(nodeId);
+
+    if (parentNodeId) {
+      const parentNode = state.nodesFlatById.get(parentNodeId);
+
+      if (parentNode) {
+        parentNode.children = parentNode.children
+          ? [...parentNode.children?.filter(n => n.key !== nodeId)]
+          : parentNode.children;
+        const parentIdByChildId = new Map(state.parentIdByChildId);
+        parentIdByChildId.delete(nodeId);
+
+        return {
+          rootNodes: [...state.rootNodes],
+          nodesFlatById: nodesFlatById,
+          parentIdByChildId: parentIdByChildId,
+          tree: createTree([...state.rootNodes], nodesFlatById)
+        }
+      }
+    }
+
+    return {
+      rootNodes: [...state.rootNodes.filter(n => n.key !== nodeId)],
+      nodesFlatById: nodesFlatById,
+      parentIdByChildId: state.parentIdByChildId,
+      tree: createTree([...state.rootNodes], nodesFlatById)
+    }
+  })
+}));
+
+export function createTree(nodes: TreeDataNode[], nodesFlatById: Map<React.Key, TreeDataNode>): TreeDataNode[] {
+  const n = [...nodes];
+  const result = [];
+
+  for (const node of n) {
+    const stateNode = nodesFlatById.get(node.key);
+
+    if (stateNode) {
+      stateNode.children = createTree(stateNode?.children ?? [], nodesFlatById);
+      result.push(stateNode);
+    }
+  }
+
+  return result;
+}
+
+export function nodeContextToTreeNode(nodeContext: NodeContext): TreeDataNode {
+  return {
+    key: nodeContext.nodeId,
+    title: nodeContext.nodeName,
+  } as TreeDataNode;
+}
\ No newline at end of file