diff --git a/src/app/directives/keytable.directive.js b/src/app/directives/keytable.directive.js
index c7f08432..a8def63f 100644
--- a/src/app/directives/keytable.directive.js
+++ b/src/app/directives/keytable.directive.js
@@ -64,7 +64,7 @@
     }
 
     function add(key, value, fixed) {
-      vm.rows.push({key:key, value:value, fixed:fixed===true});
+      vm.rows.push({key:key, value:JSON.stringify(value), fixed:fixed===true});
     }
 
     function remove(i) {
@@ -85,8 +85,10 @@
         if (! r.key) continue;
 
         var value = r.value;
-        if (!isNaN(value) && value !== '') {
-          value = parseFloat(value);
+        try {
+          value = JSON.parse(value);
+        } catch (e) {
+          // keep value as string
         }
 
         vm.model[r.key] = value;
diff --git a/src/app/pages/editor/modals/editfolder.controller.js b/src/app/pages/editor/modals/editfolder.controller.js
index a658f111..07a1ae2a 100644
--- a/src/app/pages/editor/modals/editfolder.controller.js
+++ b/src/app/pages/editor/modals/editfolder.controller.js
@@ -1,4 +1,4 @@
-(function() {
+(function () {
   'use strict';
 
   angular
@@ -15,19 +15,21 @@
   ];
 
   function EditFolderController($scope,
-                              $window,
-                              $state,
-                              $stateParams,
-                              dialogService,
-                              notificationService) {
+    $window,
+    $state,
+    $stateParams,
+    dialogService,
+    notificationService) {
     var vm = this;
     vm.action = 'New';
     vm.folder = null;
     vm.blacklist = null;
     vm.folderList = null;
     vm.original = null;
+    vm.showExport = false;
     vm.save = save;
     vm.remove = remove;
+    vm.removeTrees = removeTrees;
 
     _active();
 
@@ -39,6 +41,9 @@
         vm.folder = folder.copy();
         vm.original = folder;
         vm.action = 'Update';
+        p._selectedFolder = folder;
+        console.log("EditFolderController:", folder);
+        vm.showExport = folder.category === "tree";
       } else {
         vm.folder = new b3e.Folder();
         vm.folder.category = 'tree';
@@ -46,7 +51,7 @@
 
       var blacklist = [];
       var folderList = [];
-      p.folders.each(function(folder) {
+      p.folders.each(function (folder) {
         if (folder.name !== vm.folder.name) {
           blacklist.push(folder.name);
           if (vm.original != null &&
@@ -77,12 +82,69 @@
       $state.go('editor');
     }
 
+    function removeTrees() {
+      dialogService.
+        confirm(
+          'Remove folder and sub Trees?',
+          'Are you sure you want to remove this folder?\n\nNote: all blocks using this folder will be removed.'
+        ).then(function () {
+          var p = $window.editor.project.get();
+          console.log("removeTrees.p", p);
+          console.log("removeTrees.vm.original", vm.original);
+          p.folders.remove(vm.original);
+          var reli = []
+
+          if (vm.original.category === "tree") {
+            p.trees.each(function (tree) {
+              console.log("removeTrees.tree", tree);
+              console.log("removeTrees.tree.folder", tree._root._parent);
+
+              if (vm.original.name === tree._root._parent) {
+                reli.push(tree);
+              }
+            }, this);
+            for (var index = 0; index < reli.length; index++) {
+              var tree = reli[index];
+              p.trees.remove(tree);
+              console.log("removeTrees.trees.remove:", tree);
+            }
+            // reli.forEach(function(tree) {
+            //   p.trees.remove(tree);
+            //   console.log("removeTrees.trees.remove:", tree);
+            // });
+          } else {
+            p.nodes.each(function (node) {
+              if (node.isDefault) {
+                return
+              }
+              console.log("removeTrees.node", node);
+              // console.log("removeTrees.node.folder", node._root._parent)
+
+              if (vm.original.name === node.parent) {
+                reli.push(node);
+              }
+            }, this);
+            for (var i = 0; i < reli.length; i++) {
+              var node = reli[i];
+              p.nodes.remove(node);
+              console.log("removeTrees.nodes.remove:", node);
+            };
+          }
+
+          notificationService.success(
+            'folder removed',
+            'The folder has been removed from this project.'
+          );
+          $state.go('editor');
+        });
+    }
+
     function remove() {
       dialogService.
         confirm(
-          'Remove folder?', 
+          'Remove folder?',
           'Are you sure you want to remove this folder?\n\nNote: all blocks using this folder will be removed.'
-        ).then(function() {
+        ).then(function () {
           var p = $window.editor.project.get();
           p.folders.remove(vm.original);
           notificationService.success(
diff --git a/src/app/pages/editor/modals/editfolder.html b/src/app/pages/editor/modals/editfolder.html
index 517bd986..ea49f44d 100644
--- a/src/app/pages/editor/modals/editfolder.html
+++ b/src/app/pages/editor/modals/editfolder.html
@@ -55,6 +55,8 @@ <h1 class="b3modal-title">{{editfolder.action}} folder</h1>
 
       <div class="b3modal-buttons">
         <input type="button" class="btn btn-danger btn-lg pull-left" ng-click="editfolder.remove()" value="Remove" ng-show="editfolder.original">
+        <input type="button" class="btn btn-danger btn-lg pull-left" ng-click="editfolder.removeTrees()" value="RemoveTrees" ng-show="editfolder.original">
+        <input type="button" class="btn btn-default btn-lg"  ui-sref="editor.export({type:'folder', format:'json'})" value="Export" ng-show="editfolder.showExport">
         
         <input type="button" class="btn btn-default btn-lg" ui-sref="editor" value="Cancel">
         <button type="submit" class="btn btn-success btn-lg" ng-disabled="nodeForm.name.$invalid">Save</button>
diff --git a/src/app/pages/editor/modals/export.controller.js b/src/app/pages/editor/modals/export.controller.js
index 65b40aee..41fcaa3a 100644
--- a/src/app/pages/editor/modals/export.controller.js
+++ b/src/app/pages/editor/modals/export.controller.js
@@ -44,7 +44,7 @@
       var e = $window.editor.export;
 
       if (vm.type === 'project' && vm.format === 'json') {
-        _createJson(e.projectToData());
+        _createJson(e.projectToDataByTree());
       }
       else if (vm.type === 'tree' && vm.format === 'json') {
         _createJson(e.treeToData());
@@ -52,6 +52,9 @@
       else if (vm.type === 'nodes' && vm.format === 'json') {
         _createJson(e.nodesToData());
       }
+      else if (vm.type === 'folder' && vm.format === 'json') {
+        _createJson(e.folderToData());
+      }
     }
 
     function _createJson(data) {
diff --git a/src/app/pages/editor/modals/import.controller.js b/src/app/pages/editor/modals/import.controller.js
index 233dec30..c143901a 100644
--- a/src/app/pages/editor/modals/import.controller.js
+++ b/src/app/pages/editor/modals/import.controller.js
@@ -54,7 +54,7 @@
 
       try {
         if (vm.type === 'project' && vm.format === 'json') {
-          i.projectAsData(data.data);
+          i.projectAsData(data);
         }
         else if (vm.type === 'tree' && vm.format === 'json') {
           i.treeAsData(data);
diff --git a/src/assets/less/variables.less b/src/assets/less/variables.less
index c58e90a5..7a592ff1 100644
--- a/src/assets/less/variables.less
+++ b/src/assets/less/variables.less
@@ -29,7 +29,7 @@
 @z-notification: 50;
 
 // SIZES ======================================================================
-@size-sidebar: 250px;
+@size-sidebar: 400px;
 @size-menubar: 35px;
 @size-page-content: 700px+@size-sidebar;
 
diff --git a/src/assets/libs/behavior3js-0.1.0.min.js b/src/assets/libs/behavior3js-0.1.0.min.js
index f3502edd..de848a9a 100644
--- a/src/assets/libs/behavior3js-0.1.0.min.js
+++ b/src/assets/libs/behavior3js-0.1.0.min.js
@@ -1720,7 +1720,7 @@ var p = Sequence.prototype;
      * @readonly
     **/
     p.name = 'Sequence';
-
+    p.description = '顺序执行子节点，当子节点返回SUCCESS，直接访问下一个子节点；所有子节点都返回SUCCESS，Sequence节点才返回SUCCESS；当有子节点返回FAILURE，则后续子节点不再执行，Sequence节点直接返回FAILURE，类似于逻辑与的概念。';
     /**
      * Tick method.
      *
@@ -1796,7 +1796,7 @@ var p = Priority.prototype
      * @readonly
     **/
     p.name = 'Priority';
-
+    p.description = '就是Selector节点，选择执行子节点，当子节点返回FAILURE，访问下一个子节点，当所有子节点都返回FAILURE，Priority节点返回FAILURE；当有子节点返回SUCCESS，则后续子节点不再执行，Priority节点直接返回SUCCESS，类似于逻辑或的概念。';
     /**
      * Tick method.
      *
@@ -1872,7 +1872,7 @@ var p = MemSequence.prototype
      * @readonly
     **/
     p.name = 'MemSequence';
-
+    p.description = 'MemSequence节点的逻辑和Sequence一样，这里涉及到一个b3.RUNNING的返回值。MemSequence却会记住之前在Running的子节点，下次遍历的时候，直接从Running的那个子节点开始，这可以很方便的继续之前中断的逻辑决策。'
     /**
      * Open method.
      *
@@ -1962,6 +1962,7 @@ var p = MemPriority.prototype;
      * @readonly
     **/
     p.name = 'MemPriority';
+    p.description = 'MemPriority节点的逻辑和Priority一样，然后Running的却会记住之前在Running的子节点，下次遍历的时候，直接从Running的那个子节点开始，这可以很方便的继续之前中断的逻辑决策。'
 
     /**
      * Open method.
@@ -2051,6 +2052,7 @@ var p = Inverter.prototype;
      * @readonly
     **/
     p.name = 'Inverter';
+    p.descriptions = ''
 
     /**
      * Tick method.
@@ -2130,6 +2132,7 @@ var p = Limiter.prototype;
      * @readonly
     **/
     p.name = 'Limiter';
+    p.descriptions = ''
 
     /**
      * Node title. Default to `Limit X Activations`. Used in Editor.
@@ -2267,6 +2270,7 @@ var p = MaxTime.prototype;
      * @readonly
     **/
     p.name = 'MaxTime';
+    p.descriptions = ''
 
     /**
      * Node title. Default to `Max XXms`. Used in Editor.
@@ -2402,6 +2406,7 @@ var p = Repeater.prototype;
      * @readonly
     **/
     p.name = 'Repeater';
+    p.descriptions = ''
 
     /**
      * Node title. Default to `Repeat XXx`. Used in Editor.
@@ -2536,6 +2541,7 @@ var p = RepeatUntilFailure.prototype;
      * @readonly
     **/
     p.name = 'RepeatUntilFailure';
+    p.descriptions = ''
 
     /**
      * Node title. Default to `Repeat Until Failure`.
@@ -2670,6 +2676,7 @@ var p = RepeatUntilSuccess.prototype;
      * @readonly
     **/
     p.name = 'RepeatUntilSuccess';
+    p.descriptions = ''
 
     /**
      * Node title. Default to `Repeat Until Success`.
@@ -2802,6 +2809,7 @@ var p = Error.prototype;
      * @readonly
     **/
     p.name = 'Error';
+    p.descriptions = ''
 
     /**
      * Tick method.
@@ -2868,6 +2876,7 @@ var p = Failer.prototype;
      * @readonly
     **/
     p.name = 'Failer';
+    p.descriptions = ''
 
     /**
      * Tick method.
@@ -2934,6 +2943,7 @@ var p = Runner.prototype;
      * @readonly
     **/
     p.name = 'Runner';
+    p.descriptions = ''
 
     /**
      * Tick method.
@@ -3000,6 +3010,7 @@ var p = Succeeder.prototype;
      * @readonly
     **/
     p.name = 'Succeeder';
+    p.descriptions = ''
 
     /**
      * Tick method.
@@ -3066,6 +3077,7 @@ var p = Wait.prototype;
      * @readonly
     **/
     p.name = 'Wait';
+    p.descriptions = ''
 
     /**
      * Node title. Default to `Wait XXms`. Used in Editor.
diff --git a/src/editor/draw/symbols.js b/src/editor/draw/symbols.js
index 1cccf781..a2b09881 100644
--- a/src/editor/draw/symbols.js
+++ b/src/editor/draw/symbols.js
@@ -118,8 +118,12 @@
   };
 
   b3e.draw.textSymbol = function(block, settings) {
+    var title = block.getTitle();
+    if (title.substr(0,3) == "Mem"){
+      title = "✷" + title.substr(3);
+    }
     var text = new createjs.Text(
-        block.getTitle(),
+        title,
         '18px Arial',
         settings.get('block_symbol_color')
     );
@@ -128,6 +132,14 @@
     var bounds = text.getBounds();
     text.regY = bounds.height/2;
 
+/* 
+如果this.name中有Mem那就把星号加上去
+    shape.graphics.setStrokeStyle(swidth, 'round');
+    shape.graphics.beginStroke(scolor);
+    shape.graphics.beginFill(scolor);
+    shape.graphics.drawPolyStar(0, -ssize*0.75, ssize/2, 6, ssize/10, 0);
+*/
+
     // text.x = -block._width/2;
     // text.y = -block._height/2;
 
diff --git a/src/editor/editor/managers/ExportManager.js b/src/editor/editor/managers/ExportManager.js
index f55c6045..c828ba90 100644
--- a/src/editor/editor/managers/ExportManager.js
+++ b/src/editor/editor/managers/ExportManager.js
@@ -1,44 +1,44 @@
-b3e.editor.ExportManager = function(editor) {
+b3e.editor.ExportManager = function (editor) {
   "use strict";
 
   function getBlockChildrenIds(block) {
     var conns = block._outConnections.slice(0);
     if (editor._settings.get('layout') === 'horizontal') {
-      conns.sort(function(a, b) {
-        return a._outBlock.y - 
-               b._outBlock.y;
+      conns.sort(function (a, b) {
+        return a._outBlock.y -
+          b._outBlock.y;
       });
     } else {
-      conns.sort(function(a, b) {
-        return a._outBlock.x - 
-               b._outBlock.x;
+      conns.sort(function (a, b) {
+        return a._outBlock.x -
+          b._outBlock.x;
       });
     }
 
     var nodes = [];
-    for (var i=0; i<conns.length; i++) {
+    for (var i = 0; i < conns.length; i++) {
       nodes.push(conns[i]._outBlock.id);
     }
 
     return nodes;
   }
 
-  this.projectToData = function() {
+  this.projectToData = function () {
     var project = editor.project.get();
     if (!project) return;
 
     var tree = project.trees.getSelected();
 
     var data = {
-      version      : b3e.VERSION,
-      scope        : 'project',
-      selectedTree : (tree?tree._id:null),
-      trees        : [],
-      custom_nodes : this.nodesToData(),
-      custom_folders : this.foldersToData(),
+      version: b3e.VERSION,
+      scope: 'project',
+      selectedTree: (tree ? tree._id : null),
+      trees: [],
+      custom_nodes: this.nodesToData(),
+      custom_folders: this.foldersToData(),
     };
 
-    project.trees.each(function(tree) {
+    project.trees.each(function (tree) {
       var d = this.treeToData(tree, true);
       d.id = tree._id;
       data.trees.push(d);
@@ -46,8 +46,70 @@ b3e.editor.ExportManager = function(editor) {
 
     return data;
   };
-  
-  this.treeToData = function(tree, ignoreNodes) {
+  this.projectToDataByTree = function () {
+    var project = editor.project.get();
+    if (!project) return;
+
+    var tree = project.trees.getSelected();
+
+    var data = {
+      version: b3e.VERSION,
+      scope: 'project',
+      selectedTree: (tree ? tree._id : null),
+      trees: [],
+      custom_nodes: [],
+      custom_folders: this.foldersToData(),
+    };
+
+    project.trees.each(function (tree) {
+      var d = this.treeToData(tree, true);
+      d.id = tree._id;
+      data.trees.push(d);
+    }, this);
+
+    return data;
+  };
+  this.folderToData = function () {
+    var project = editor.project.get();
+    if (!project) return;
+
+    var tree = project.trees.getSelected();
+    var folder = project.folders.getSelected();
+    console.log("folderToData:", folder)
+    var data = {
+      version: b3e.VERSION,
+      scope: 'project',
+      selectedTree: (tree ? tree._id : null),
+      trees: [],
+      custom_nodes: [],
+      custom_folders: [],
+    };
+    if (!folder.isDefault) {
+      data.custom_folders.push({
+        version: b3e.VERSION,
+        scope: 'folder',
+        name: folder.name,
+        category: folder.category,
+        title: folder.title,
+        description: folder.description,
+        parent: folder.parent,
+      });
+    }
+    project.trees.each(function (tree) {
+      var d = this.treeToData(tree, true);
+      d.id = tree._id;
+      if (folder.name === d.parent) {
+        data.trees.push(d);
+        console.log("folderToData.trees:", d)
+
+      }
+
+    }, this);
+
+    return data;
+  };
+
+  this.treeToData = function (tree, ignoreNodes) {
     var project = editor.project.get();
     if (!project) return;
 
@@ -61,21 +123,21 @@ b3e.editor.ExportManager = function(editor) {
     var root = tree.blocks.getRoot();
     var first = getBlockChildrenIds(root);
     var data = {
-      version      : b3e.VERSION,
-      scope        : 'tree',
-      id           : tree._id,
-      title        : root.title,
-      description  : root.description,
-      root         : first[0] || null,
-      properties   : root.properties,
-      parent       : root._parent,
-      nodes        : {},
-      display     : {
-        camera_x : tree.x,
-        camera_y : tree.y,
-        camera_z : tree.scaleX,
-        x        : root.x,
-        y        : root.y,
+      version: b3e.VERSION,
+      scope: 'tree',
+      id: tree._id,
+      title: root.title,
+      description: root.description,
+      root: first[0] || null,
+      properties: root.properties,
+      parent: root._parent,
+      nodes: {},
+      display: {
+        camera_x: tree.x,
+        camera_y: tree.y,
+        camera_z: tree.scaleX,
+        x: root.x,
+        y: root.y,
       },
     };
 
@@ -84,16 +146,16 @@ b3e.editor.ExportManager = function(editor) {
       data.custom_folders = this.foldersToData();
     }
 
-    tree.blocks.each(function(block) {
+    tree.blocks.each(function (block) {
       if (block.category !== 'root') {
-        var d ={
-          id          : block.id,
-          name        : block.name,
-          category    : block.category,
-          title       : block.title,
-          description : block.description,
-          properties  : block.properties,
-          display     : {x:block.x, y:block.y}
+        var d = {
+          id: block.id,
+          name: block.name,
+          category: block.category,
+          title: block.title,
+          description: block.description,
+          properties: block.properties,
+          display: { x: block.x, y: block.y }
         };
 
         var children = getBlockChildrenIds(block);
@@ -110,22 +172,22 @@ b3e.editor.ExportManager = function(editor) {
     return data;
   };
 
-  this.nodesToData = function() {
+  this.nodesToData = function () {
     var project = editor.project.get();
     if (!project) return;
 
     var data = [];
-    project.nodes.each(function(node) {
+    project.nodes.each(function (node) {
       if (!node.isDefault) {
         data.push({
-          version     : b3e.VERSION,
-          scope       : 'node',
-          name        : node.name,
-          category    : node.category,
-          title       : node.title,
-          description : node.description,
-          properties  : node.properties,
-          parent      : node.parent,
+          version: b3e.VERSION,
+          scope: 'node',
+          name: node.name,
+          category: node.category,
+          title: node.title,
+          description: node.description,
+          properties: node.properties,
+          parent: node.parent,
         });
       }
     });
@@ -133,21 +195,21 @@ b3e.editor.ExportManager = function(editor) {
     return data;
   };
 
-  this.foldersToData = function() {
+  this.foldersToData = function () {
     var project = editor.project.get();
     if (!project) return;
 
     var data = [];
-    project.folders.each(function(folder) {
+    project.folders.each(function (folder) {
       if (!folder.isDefault) {
         data.push({
-          version     : b3e.VERSION,
-          scope       : 'folder',
-          name        : folder.name,
-          category    : folder.category,
-          title       : folder.title,
-          description : folder.description,
-          parent      : folder.parent,
+          version: b3e.VERSION,
+          scope: 'folder',
+          name: folder.name,
+          category: folder.category,
+          title: folder.title,
+          description: folder.description,
+          parent: folder.parent,
         });
       }
     });
@@ -155,7 +217,7 @@ b3e.editor.ExportManager = function(editor) {
     return data;
   };
 
-  this.nodesToJavascript = function() {};
+  this.nodesToJavascript = function () { };
 
-  this._applySettings = function(settings) {};
+  this._applySettings = function (settings) { };
 };
\ No newline at end of file
diff --git a/src/editor/project/Project.js b/src/editor/project/Project.js
index a228c922..72396b70 100644
--- a/src/editor/project/Project.js
+++ b/src/editor/project/Project.js
@@ -8,6 +8,7 @@
     this._id = b3.createUUID();
     this._editor = editor;
     this._selectedTree = null;
+    this._selectedFolder = null;
     this._clipboard = null;
     this._nodes = {};
     this._folders = {};
diff --git a/src/editor/project/managers/FolderManager.js b/src/editor/project/managers/FolderManager.js
index 4644a683..f3ad91b4 100644
--- a/src/editor/project/managers/FolderManager.js
+++ b/src/editor/project/managers/FolderManager.js
@@ -36,6 +36,9 @@ b3e.project.FolderManager = function(editor, project) {
     return folder;
   };
 
+  this.getSelected = function() {
+    return project._selectedFolder;
+  };
   /**
    * 
    */