diff --git a/sample/scripts/build.js b/sample/scripts/build.js
index 902390d..ab2cf44 100644
--- a/sample/scripts/build.js
+++ b/sample/scripts/build.js
@@ -1,41 +1,49 @@
 /* 批处理脚本 */
 /* 
-    如果有processTree，则先运行prcessTree，如果有返回，则进行后面的针对每个节点运行processNode
-    如果没有定义processTree，则直接针对每个节点运行processNode
+  如果有processTree，则先运行prcessTree，如果有返回，则进行后面的针对每个节点运行processNode
+  如果没有定义processTree，则直接针对每个节点运行processNode
 
-    export interface TreeModel {
-      version: string;
-      name: string;
-      desc?: string;
-      export?: boolean;
-      firstid: number;
-      group: string[];
-      import: string[];
-      declvar: VarDef[];
-      root: NodeModel;
-    }
+  export interface TreeModel {
+    version: string;
+    name: string;
+    desc?: string;
+    export?: boolean;
+    firstid: number;
+    group: string[];
+    import: string[];
+    declvar: VarDef[];
+    root: NodeModel;
+  }
 
-    export interface NodeModel {
-      id: number;
-      name: string;
-      desc?: string;
-      args?: { [key: string]: any };
-      input?: string[];
-      output?: string[];
-      children?: NodeModel[];
-      debug?: boolean;
-      disabled?: boolean;
-      path?: string;
-    }
+  export interface NodeModel {
+    id: number;
+    name: string;
+    desc?: string;
+    args?: { [key: string]: any };
+    input?: string[];
+    output?: string[];
+    children?: NodeModel[];
+    debug?: boolean;
+    disabled?: boolean;
+    path?: string;
+  }
 
-    interface BuildScript {
-      processTree?(tree: TreeModel, path: string): TreeModel | null;
-      processNode?(node: NodeModel, tree: TreeModel): NodeModel | null;
-      onWriteFile?(path: string, tree: TreeModel): void;
-      onComplete?(status: "success" | "failure"): void;
-    }
+  interface BatchScript {
+    onSetup?(env: Env): void;
+    processTree?(tree: TreeModel, path: string): TreeModel | null;
+    processNode?(node: NodeModel, tree: TreeModel): NodeModel | null;
+    onWriteFile?(path: string, tree: TreeModel): void;
+    onComplete?(status: "success" | "failure"): void;
+  }
 */
 ({
+  onSetup: (env) => {
+    console.log("onSetup", env);
+    console.log(env.workdir);
+    console.log(env.nodeDefs.get("Wait"));
+    console.log(env.path.dirname("sample/scripts/build.js"));
+    console.log(env.fs.readFileSync("sample/scripts/build.js", "utf8"));
+  },
   processTree: (tree) => {
     console.log(`processTree ${tree.name}`);
     return tree;
diff --git a/sample/scripts/test.js b/sample/scripts/test.js
index f5bba42..ea156dc 100644
--- a/sample/scripts/test.js
+++ b/sample/scripts/test.js
@@ -1,38 +1,40 @@
 /* 批处理脚本 */
 /* 
-    如果有processTree，则先运行prcessTree，如果有返回，则进行后面的针对每个节点运行processNode
-    如果没有定义processTree，则直接针对每个节点运行processNode
+  如果有processTree，则先运行prcessTree，如果有返回，则进行后面的针对每个节点运行processNode
+  如果没有定义processTree，则直接针对每个节点运行processNode
 
-    export interface TreeModel {
-      version: string;
-      name: string;
-      desc?: string;
-      export?: boolean;
-      firstid: number;
-      group: string[];
-      import: string[];
-      declvar: VarDef[];
-      root: NodeModel;
-    }
+  export interface TreeModel {
+    version: string;
+    name: string;
+    desc?: string;
+    export?: boolean;
+    firstid: number;
+    group: string[];
+    import: string[];
+    declvar: VarDef[];
+    root: NodeModel;
+  }
 
-    export interface NodeModel {
-      id: number;
-      name: string;
-      desc?: string;
-      args?: { [key: string]: any };
-      input?: string[];
-      output?: string[];
-      children?: NodeModel[];
-      debug?: boolean;
-      disabled?: boolean;
-      path?: string;
-    }
+  export interface NodeModel {
+    id: number;
+    name: string;
+    desc?: string;
+    args?: { [key: string]: any };
+    input?: string[];
+    output?: string[];
+    children?: NodeModel[];
+    debug?: boolean;
+    disabled?: boolean;
+    path?: string;
+  }
 
-    interface BatchScript {
-        processTree?(tree: TreeModel, path: string): TreeModel;
-
-        processNode?(node: NodeModel, tree: TreeModel): NodeModel;
-    }
+  interface BatchScript {
+    onSetup?(env: Env): void;
+    processTree?(tree: TreeModel, path: string): TreeModel | null;
+    processNode?(node: NodeModel, tree: TreeModel): NodeModel | null;
+    onWriteFile?(path: string, tree: TreeModel): void;
+    onComplete?(status: "success" | "failure"): void;
+  }
 */
 ({
   processTree: (tree) => {
diff --git a/src/components/inspector.tsx b/src/components/inspector.tsx
index c8fe503..dc954f8 100644
--- a/src/components/inspector.tsx
+++ b/src/components/inspector.tsx
@@ -1487,7 +1487,10 @@ const NodeDefInspector: FC = () => {
     form.setFieldValue("type", def.type);
     form.setFieldValue("desc", def.desc);
     form.setFieldValue("doc", def.doc);
-    form.setFieldValue("group", def.group);
+    form.setFieldValue(
+      "group",
+      def.group?.map((g) => ({ label: g, value: g }))
+    );
     if (def.children === undefined || def.children === -1) {
       form.setFieldValue("children", t("node.children.unlimited"));
     } else {
@@ -1526,7 +1529,12 @@ const NodeDefInspector: FC = () => {
           </Form.Item>
           {workspace.groupDefs.length > 0 && def.group?.length && (
             <Form.Item name="group" label={t("node.group")}>
-              <GroupDefItem disabled={true} />
+              <Select
+                style={{ fontSize: "13px" }}
+                mode="multiple"
+                suffixIcon={null}
+                disabled={true}
+              />
             </Form.Item>
           )}
           <Form.Item name="children" label={t("node.children")}>
diff --git a/src/contexts/workspace-context.ts b/src/contexts/workspace-context.ts
index 52a691e..874ab07 100644
--- a/src/contexts/workspace-context.ts
+++ b/src/contexts/workspace-context.ts
@@ -421,14 +421,22 @@ export const useWorkspace = create<WorkspaceStore>((set, get) => ({
       try {
         console.log("run script", scriptPath);
         const str = fs.readFileSync(scriptPath, "utf8");
-        const batch = eval(str) as b3util.BuildScript;
+        const batch = eval(str) as b3util.BatchScript;
+        batch.onSetup?.({
+          fs,
+          path: Path,
+          workdir: workspace.workdir,
+          nodeDefs: get().nodeDefs,
+        });
         workspace.allFiles.forEach((file) => {
           let tree: TreeModel | null = readTree(file.path);
           tree = b3util.processBatch(tree, file.path, batch);
           if (tree) {
+            batch.onWriteFile?.(file.path, tree);
             fs.writeFileSync(file.path, JSON.stringify(tree, null, 2));
           }
         });
+        batch.onComplete?.("success");
       } catch (error) {
         hasError = true;
         console.error(error);
diff --git a/src/misc/b3util.ts b/src/misc/b3util.ts
index 9430d38..b27624e 100644
--- a/src/misc/b3util.ts
+++ b/src/misc/b3util.ts
@@ -21,22 +21,27 @@ import {
 import Path from "./path";
 import { readJson, readTree } from "./util";
 
-export interface BatchScript {
-  processTree?(tree: TreeModel, path: string): TreeModel | null;
-  processNode?(node: NodeModel, tree: TreeModel): NodeModel | null;
-}
-
-export interface BuildScript extends BatchScript {
-  onWriteFile?(path: string, tree: TreeModel): void;
-  onComplete?(status: "success" | "failure"): void;
-}
-
 export class NodeDefs extends Map<string, NodeDef> {
   get(key: string): NodeDef {
     return super.get(key) ?? unknownNodeDef;
   }
 }
 
+type Env = {
+  fs: typeof fs;
+  path: typeof Path;
+  workdir: string;
+  nodeDefs: NodeDefs;
+};
+
+export interface BatchScript {
+  onSetup?(env: Env): void;
+  processTree?(tree: TreeModel, path: string): TreeModel | null;
+  processNode?(node: NodeModel, tree: TreeModel): NodeModel | null;
+  onWriteFile?(path: string, tree: TreeModel): void;
+  onComplete?(status: "success" | "failure"): void;
+}
+
 export let nodeDefs: NodeDefs = new NodeDefs();
 export let groupDefs: string[] = [];
 export let usingGroups: Record<string, boolean> = {};
@@ -811,7 +816,7 @@ export const processBatch = (tree: TreeModel | null, path: string, batch: BatchS
 export const buildProject = (project: string, buildDir: string) => {
   let hasError = false;
   const settings = readJson<WorkspaceModel>(project).settings;
-  let buildScript: BuildScript | undefined;
+  let buildScript: BatchScript | undefined;
   if (settings.checkExpr) {
     setCheckExpr(true);
   }
@@ -823,6 +828,15 @@ export const buildProject = (project: string, buildDir: string) => {
       console.error(`'${scriptPath}' is not a valid build script`);
     }
   }
+  if (buildScript) {
+    buildScript.onSetup?.({
+      fs,
+      path: Path,
+      workdir,
+      nodeDefs,
+    });
+  }
+
   for (const path of Path.ls(Path.dirname(project), true)) {
     if (path.endsWith(".json")) {
       const buildpath = buildDir + "/" + path.substring(workdir.length + 1);