diff --git a/public/locales/en.json b/public/locales/en.json
index f71fdfb..f187f52 100644
--- a/public/locales/en.json
+++ b/public/locales/en.json
@@ -79,6 +79,7 @@
   "tree.desc": "Tree desc",
   "tree.export": "Export",
   "tree.firstid": "First id",
+  "tree.group": "Available groups",
   "tree.vars": "Define Variables",
   "tree.vars.name": "name",
   "tree.vars.invalidName": "Invalid variable name",
diff --git a/public/locales/zh.json b/public/locales/zh.json
index 8358596..9294f43 100644
--- a/public/locales/zh.json
+++ b/public/locales/zh.json
@@ -79,6 +79,7 @@
   "tree.desc": "说明",
   "tree.export": "导出",
   "tree.firstid": "起始标识",
+  "tree.group": "可用分组",
   "tree.vars": "定义变量",
   "tree.vars.name": "变量名",
   "tree.vars.invalidName": "变量名不合法",
diff --git a/sample/vars/test-vars.json b/sample/vars/test-vars.json
index 78f4dae..9e4587b 100644
--- a/sample/vars/test-vars.json
+++ b/sample/vars/test-vars.json
@@ -3,6 +3,9 @@
   "desc": "",
   "firstid": 1,
   "export": true,
+  "group": [
+    "Client"
+  ],
   "declare": {
     "imports": [
       "vars/declare-core.json",
diff --git a/src/components/editor.tsx b/src/components/editor.tsx
index 20f1fc3..f128142 100644
--- a/src/components/editor.tsx
+++ b/src/components/editor.tsx
@@ -171,6 +171,7 @@ export const Editor: FC<EditorProps> = ({ onUpdate: updateState, data: editor, .
       workdir: state.workdir,
       relative: state.relative,
       updateFileMeta: state.updateFileMeta,
+      nodeDefs: state.nodeDefs,
     }))
   );
 
@@ -479,7 +480,7 @@ export const Editor: FC<EditorProps> = ({ onUpdate: updateState, data: editor, .
       return;
     }
     b3util.copyFromNode(data, newNode);
-    data.def = b3util.getNodeDefs().get(data.name)!;
+    data.def = workspace.nodeDefs.get(data.name)!;
     data.size = calcTreeDataSize(data);
     if (oldNode.path !== newNode.path) {
       refresh();
@@ -497,6 +498,7 @@ export const Editor: FC<EditorProps> = ({ onUpdate: updateState, data: editor, .
     if (editor.desc !== editTree.data.desc || editor.export !== editTree.data.export) {
       editor.desc = editTree.data.desc || "";
       editor.export = editTree.data.export !== false;
+      editor.group = editTree.data.group || [];
       if (editor.data.firstid !== editTree.data.firstid) {
         editor.firstid = editTree.data.firstid ?? 1;
         editor.declare.vars = editTree.data.declare.vars || [];
@@ -726,6 +728,7 @@ export const Editor: FC<EditorProps> = ({ onUpdate: updateState, data: editor, .
         desc: editor.desc,
         firstid: editor.firstid ?? 1,
         export: editor.export,
+        group: editor.group ?? [],
         declare: {
           imports: editor.declare.imports.map((v) => v.path).sort(),
           vars: editor.declare.vars.sort((a, b) => a.name.localeCompare(b.name)),
diff --git a/src/components/inspector.tsx b/src/components/inspector.tsx
index 23c3ec9..df1241c 100644
--- a/src/components/inspector.tsx
+++ b/src/components/inspector.tsx
@@ -2,6 +2,7 @@ import { AimOutlined, EditOutlined, MinusCircleOutlined, PlusOutlined } from "@a
 import {
   AutoComplete,
   Button,
+  Checkbox,
   Divider,
   Flex,
   Form,
@@ -20,6 +21,7 @@ import { useDebounceCallback } from "usehooks-ts";
 import { useShallow } from "zustand/react/shallow";
 import { EditNode, EditTree, useWorkspace } from "../contexts/workspace-context";
 import {
+  GroupDef,
   ImportDef,
   isBoolType,
   isEnumType,
@@ -57,24 +59,19 @@ const TreeInspector: FC = () => {
       allFiles: state.allFiles,
       relative: state.relative,
       fileTree: state.fileTree,
+      groupDefs: state.groupDefs,
     }))
   );
   const { t } = useTranslation();
   const [form] = Form.useForm();
 
-  // set form values
-  useEffect(() => {
-    const data = workspace.editingTree.data;
-    loadVarDef(data.declare.imports);
-    form.resetFields();
-    form.setFieldValue("name", data.name);
-    form.setFieldValue("desc", data.desc);
-    form.setFieldValue("export", data.export !== false);
-    form.setFieldValue("firstid", data.firstid);
-    form.setFieldValue("declare.vars", data.declare?.vars);
-    form.setFieldValue("declare.imports", data.declare?.imports);
-    form.setFieldValue("declare.subtree", data.declare?.subtree);
-  }, [workspace.editingTree]);
+  // group defs
+  const groupDefs: GroupDef[] = useMemo(() => {
+    return workspace.groupDefs.map((v) => ({
+      name: v,
+      value: workspace.editingTree.data.group.includes(v),
+    }));
+  }, [workspace.groupDefs, workspace.editingTree]);
 
   // auto complete for subtree
   const subtreeOptions = useMemo(() => {
@@ -91,6 +88,21 @@ const TreeInspector: FC = () => {
     return options;
   }, [workspace.allFiles, workspace.fileTree]);
 
+  // set form values
+  useEffect(() => {
+    const data = workspace.editingTree.data;
+    loadVarDef(data.declare.imports);
+    form.resetFields();
+    form.setFieldValue("name", data.name);
+    form.setFieldValue("desc", data.desc);
+    form.setFieldValue("export", data.export !== false);
+    form.setFieldValue("firstid", data.firstid);
+    form.setFieldValue("group", groupDefs);
+    form.setFieldValue("declare.vars", data.declare?.vars);
+    form.setFieldValue("declare.imports", data.declare?.imports);
+    form.setFieldValue("declare.subtree", data.declare?.subtree);
+  }, [workspace.editingTree, groupDefs]);
+
   const finish = (values: any) => {
     workspace.editing?.dispatch("updateTree", {
       data: {
@@ -98,6 +110,10 @@ const TreeInspector: FC = () => {
         desc: values.desc || undefined,
         export: values.export,
         firstid: Number(values.firstid),
+        group: (values.group as GroupDef[])
+          .map((v) => (v.value ? v.name : undefined))
+          .filter((v) => v)
+          .sort(),
         declare: {
           vars: (values["declare.vars"] as VarDef[])
             .filter((v) => v && v.name)
@@ -143,6 +159,39 @@ const TreeInspector: FC = () => {
               <Switch onChange={() => form.submit()} />
             </Form.Item>
           </>
+          {groupDefs.length > 0 && (
+            <>
+              <Divider orientation="left">
+                <h4>{t("tree.group")}</h4>
+              </Divider>
+              <Form.List name="group">
+                {(items) => (
+                  <Flex
+                    style={{
+                      display: "flex",
+                      flexDirection: "row",
+                      gap: 8,
+                      rowGap: 0,
+                      flexWrap: "wrap",
+                    }}
+                  >
+                    {items
+                      .filter((v) => groupDefs[v.name])
+                      .map((item, idx) => (
+                        <Form.Item
+                          key={item.key}
+                          name={[item.name, "value"]}
+                          valuePropName="checked"
+                          style={{ marginBottom: 0 }}
+                        >
+                          <Checkbox onChange={form.submit}>{groupDefs[idx].name}</Checkbox>
+                        </Form.Item>
+                      ))}
+                  </Flex>
+                )}
+              </Form.List>
+            </>
+          )}
           <>
             <Divider orientation="left">
               <h4>{t("tree.vars")}</h4>
diff --git a/src/contexts/workspace-context.ts b/src/contexts/workspace-context.ts
index 2b0eca6..faea9f9 100644
--- a/src/contexts/workspace-context.ts
+++ b/src/contexts/workspace-context.ts
@@ -49,6 +49,7 @@ export class EditorStore {
   export: boolean;
   name: string;
   firstid: number;
+  group: string[];
 
   declare: {
     imports: ImportDef[];
@@ -85,6 +86,7 @@ export class EditorStore {
     this.export = file.export !== false;
     this.name = file.name || path.slice(0, -5);
     this.firstid = file.firstid ?? 1;
+    this.group = file.group ?? [];
     this.declare = {
       vars: file.declare?.vars ?? [],
       imports:
@@ -126,6 +128,7 @@ export type EditTree = {
     desc?: string;
     export?: boolean;
     firstid?: number;
+    group: string[];
     declare: {
       imports: ImportDef[];
       vars: VarDef[];
@@ -183,6 +186,7 @@ export type WorkspaceStore = {
 
   loadNodeDefs: () => void;
   nodeDefs: b3util.NodeDefs;
+  groupDefs: string[];
 
   // edit node
   editingNode?: EditNode | null;
@@ -520,6 +524,7 @@ export const useWorkspace = create<WorkspaceStore>((set, get) => ({
             name: editting.name,
             desc: editting.desc,
             firstid: editting.firstid,
+            group: editting.group,
             declare: {
               vars: editting.declare.vars,
               imports: editting.declare.imports,
@@ -642,10 +647,11 @@ export const useWorkspace = create<WorkspaceStore>((set, get) => ({
   },
 
   nodeDefs: new b3util.NodeDefs(),
+  groupDefs: [],
   loadNodeDefs: () => {
     const workspace = get();
     b3util.initWorkdir(workspace.workdir, message.error.bind(message));
-    set({ nodeDefs: b3util.getNodeDefs() });
+    set({ nodeDefs: b3util.getNodeDefs(), groupDefs: b3util.getGroupDefs() });
     workspace.editing?.dispatch("refresh");
   },
 
@@ -679,6 +685,7 @@ export const useWorkspace = create<WorkspaceStore>((set, get) => ({
           desc: editor.desc,
           export: editor.export,
           firstid: editor.firstid,
+          group: editor.group,
           declare: {
             imports: editor.declare.imports,
             vars: editor.declare.vars,
diff --git a/src/misc/b3type.ts b/src/misc/b3type.ts
index bc419ef..04c14d8 100644
--- a/src/misc/b3type.ts
+++ b/src/misc/b3type.ts
@@ -30,6 +30,11 @@ export interface VarDef {
   desc: string;
 }
 
+export interface GroupDef {
+  name: string;
+  value: boolean;
+}
+
 export interface ImportDef {
   path: string;
   date?: number;
@@ -41,11 +46,12 @@ export interface TreeModel {
   desc?: string;
   export?: boolean;
   firstid?: number;
-  root: NodeModel;
+  group?: string[];
   declare?: {
     imports?: string[];
     vars?: VarDef[];
   };
+  root: NodeModel;
 }
 
 export interface TreeGraphData extends G6TreeGraphData {
diff --git a/src/misc/b3util.ts b/src/misc/b3util.ts
index 3786613..80226f5 100644
--- a/src/misc/b3util.ts
+++ b/src/misc/b3util.ts
@@ -27,6 +27,7 @@ export class NodeDefs extends Map<string, NodeDef> {
 let workdir: string = "";
 let alertError: (msg: string, duration?: number) => void = () => {};
 let nodeDefs: NodeDefs = new NodeDefs();
+let groupDefs: string[] = [];
 
 const unknownNodeDef: NodeDef = {
   name: "unknown",
@@ -38,14 +39,25 @@ export const getNodeDefs = () => {
   return nodeDefs;
 };
 
+export const getGroupDefs = () => {
+  return groupDefs;
+};
+
 export const initWorkdir = (path: string, handler: typeof alertError) => {
   workdir = path;
   alertError = handler;
   const nodeDefData = readJson(`${workdir}/node-config.b3-setting`) as NodeDef[];
+  const groups: Set<string> = new Set();
   nodeDefs = new NodeDefs();
   for (const v of nodeDefData) {
     nodeDefs.set(v.name, v);
+
+    const group = v.type.match(/\((\w+)\)/)?.[1];
+    if (group) {
+      groups.add(group);
+    }
   }
+  groupDefs = Array.from(groups);
 };
 
 export const isValidVariableName = (name: string) => {