diff --git a/packages/demo/build.json b/packages/demo/build.json
index 92c4ecadb..8f4768d17 100644
--- a/packages/demo/build.json
+++ b/packages/demo/build.json
@@ -1,9 +1,7 @@
 {
   "entry": {
-    "index": "src/index",
     "editor-preset-vision": "../editor-preset-vision/src/index.ts",
-    "react-simulator-renderer": "../react-simulator-renderer/src/index.ts",
-    "rax-simulator-renderer": "../rax-simulator-renderer/src/index.ts"
+    "react-simulator-renderer": "../react-simulator-renderer/src/index.ts"
   },
   "vendor": false,
   "devServer": {
diff --git a/packages/designer/src/document/node/node.ts b/packages/designer/src/document/node/node.ts
index f41434e05..7670de90f 100644
--- a/packages/designer/src/document/node/node.ts
+++ b/packages/designer/src/document/node/node.ts
@@ -108,7 +108,7 @@ export class Node<Schema extends NodeSchema = NodeSchema> {
   /**
    * @deprecated
    */
-  private _addons: { [key: string]: { exportData: () => any; isProp: boolean; } } = {};
+  private _addons: { [key: string]: { exportData: () => any; isProp: boolean } } = {};
 
   @obx.ref private _parent: ParentalNode | null = null;
 
@@ -173,7 +173,10 @@ export class Node<Schema extends NodeSchema = NodeSchema> {
       this.settingEntry = this.document.designer.createSettingEntry([this]);
       this._children = new NodeChildren(this as ParentalNode, this.initialChildren(children));
       this._children.internalInitParent();
-      this.props.import(this.upgradeProps(this.initProps(props || {})), this.upgradeProps(extras || {}));
+      this.props.import(
+        this.upgradeProps(this.initProps(props || {})),
+        this.upgradeProps(extras || {}),
+      );
       this.setupAutoruns();
     }
 
@@ -596,15 +599,21 @@ export class Node<Schema extends NodeSchema = NodeSchema> {
   import(data: Schema, checkId = false) {
     const { componentName, id, children, props, ...extras } = data;
     if (this.isSlot()) {
-      foreachReverse(this.children, (subNode: Node) => {
-        subNode.remove(true, true);
-      }, (iterable, idx) => (iterable as NodeChildren).get(idx));
+      foreachReverse(
+        this.children,
+        (subNode: Node) => {
+          subNode.remove(true, true);
+        },
+        (iterable, idx) => (iterable as NodeChildren).get(idx),
+      );
     }
     if (this.isParental()) {
       this.props.import(props, extras);
       (this._children as NodeChildren).import(children, checkId);
     } else {
-      this.props.get('children', true)!.setValue(isDOMText(children) || isJSExpression(children) ? children : '');
+      this.props
+        .get('children', true)!
+        .setValue(isDOMText(children) || isJSExpression(children) ? children : '');
     }
   }
 
@@ -768,7 +777,8 @@ export class Node<Schema extends NodeSchema = NodeSchema> {
    * 是否可执行某action
    */
   canPerformAction(action: string): boolean {
-    const availableActions = this.componentMeta?.availableActions?.map((action) => action.name) || [];
+    const availableActions =
+      this.componentMeta?.availableActions?.map((action) => action.name) || [];
     return availableActions.indexOf(action) >= 0;
   }
 
@@ -837,7 +847,11 @@ export class Node<Schema extends NodeSchema = NodeSchema> {
     return this.children?.onChange(fn);
   }
 
-  mergeChildren(remover: () => any, adder: (children: Node[]) => NodeData[] | null, sorter: () => any) {
+  mergeChildren(
+    remover: () => any,
+    adder: (children: Node[]) => NodeData[] | null,
+    sorter: () => any,
+  ) {
     this.children?.mergeChildren(remover, adder, sorter);
   }
 
@@ -894,37 +908,60 @@ export class Node<Schema extends NodeSchema = NodeSchema> {
    * @deprecated
    */
   getSuitablePlace(node: Node, ref: any): any {
+    const focusNode = this.document.focusNode;
+    if (!ref && this.contains(focusNode)) {
+      const rootCanDropIn = focusNode.componentMeta?.prototype?.options?.canDropIn;
+      if (
+        rootCanDropIn === undefined ||
+        rootCanDropIn === true ||
+        (typeof rootCanDropIn === 'function' && rootCanDropIn(node))
+      ) {
+        return { container: focusNode };
+      }
+
+      return null;
+    }
+
+    // todo: remove these dirty code (for legao tranditional scene)
     if (this.isRoot() && this.children) {
-      const dropElement = this.children.filter((c: Node) => {
+      const rootCanDropIn = this.componentMeta?.prototype?.options?.canDropIn;
+      if (
+        rootCanDropIn === undefined ||
+        rootCanDropIn === true ||
+        (typeof rootCanDropIn === 'function' && rootCanDropIn(node))
+      ) {
+        return { container: this, ref };
+      }
+
+      const dropElement = this.children.filter((c) => {
         if (!c.isContainer()) {
           return false;
         }
         const canDropIn = c.componentMeta?.prototype?.options?.canDropIn;
-        if (typeof canDropIn === 'function') {
-          return canDropIn(node);
-        } else if (typeof canDropIn === 'boolean') {
-          return canDropIn;
+        if (
+          canDropIn === undefined ||
+          canDropIn === true ||
+          (typeof canDropIn === 'function' && canDropIn(node))
+        ) {
+          return true;
         }
-        return true;
+        return false;
       })[0];
+
       if (dropElement) {
-        return { container: dropElement, ref };
+        return { container: dropElement };
       }
-      const rootCanDropIn = this.componentMeta?.prototype?.options?.canDropIn;
-      if (rootCanDropIn === undefined
-          || rootCanDropIn === true
-          || (typeof rootCanDropIn === 'function' && rootCanDropIn(node))) {
-        return { container: this, ref };
-      }
-      // 假如最后找不到合适位置，返回 undefined 阻止继续插入节点
-      return undefined;
+
+      return null;
     }
 
     const canDropIn = this.componentMeta?.prototype?.options?.canDropIn;
     if (this.isContainer()) {
-      if (canDropIn === undefined ||
-        (typeof canDropIn === 'boolean' && canDropIn) ||
-      (typeof canDropIn === 'function' && canDropIn(node))) {
+      if (
+        canDropIn === undefined ||
+        canDropIn === true ||
+        (typeof canDropIn === 'function' && canDropIn(node))
+      ) {
         return { container: this, ref };
       }
     }
@@ -1077,7 +1114,12 @@ export function comparePosition(node1: Node, node2: Node): PositionNO {
   return PositionNO.BeforeOrAfter;
 }
 
-export function insertChild(container: ParentalNode, thing: Node | NodeData, at?: number | null, copy?: boolean): Node {
+export function insertChild(
+  container: ParentalNode,
+  thing: Node | NodeData,
+  at?: number | null,
+  copy?: boolean,
+): Node {
   let node: Node;
   if (isNode(thing) && (copy || thing.isSlot())) {
     thing = thing.export(TransformStage.Clone);
diff --git a/scripts/start.sh b/scripts/start.sh
index 251a119df..388716ab7 100755
--- a/scripts/start.sh
+++ b/scripts/start.sh
@@ -1,6 +1,5 @@
 #!/usr/bin/env bash
 
 # FIXME! do not run build
-lerna exec --scope @ali/lowcode-rax-renderer -- npm run build
 lerna exec --scope @ali/lowcode-react-renderer -- npm run build
 lerna exec --scope @ali/lowcode-demo -- npm start