added string support

src/module/layout.js

 KityMinder.registerModule( "LayoutModule", function () {
-	var CreateChildNodeCommand = kity.createClass( "CreateChildNodeCommand", ( function () {
-		return {
-			base: Command,
-			execute: function ( km, parent ) {
-				var _node = new MinderNode();
-				var _nodeD = {
-					text: "New Node",
-					x: parent.getData( "data" ).x + 200,
-					y: Math.random() * 300 + 100,
-					align: "left"
-				};
-				_node.setData( "data", _nodeD );
-				parent.insertChild( _node );
-				km.execCommand( 'rendernode', _node );
-				return _node;
+		var CreateChildNodeCommand = kity.createClass( "CreateChildNodeCommand", ( function () {
+				return {
+					base: Command,
+					execute: function ( km, parent ) {
+						var _node = new MinderNode();
+						var _nodeD = {
+							text: "New Node",
+							x: parent.getData( "data" ).x + 200,
+							y: Math.random() * 300 + 100,
+							align: "left"
+						};
+						switch ( parent.branchside ) {
+						case "left":
+							break;
+						case "right":
+							break;
+						default:
+							if ( parent ) {} else {}
+							break;
+						}
+					}
+					_node.setData( "data", _nodeD );
+					parent.insertChild( _node );
+					km.execCommand( 'rendernode', _node );
+					return _node;
+				}
 			}
-		}
-	} )() );
+		} )() );
 	var CreateSiblingNodeCommand = kity.createClass( "CreateSiblingNodeCommand", ( function () {
 
 		return {

src/module/render.js

@@ -75,7 +75,13 @@ KityMinder.registerModule( "RenderModule", function () {
         return {
             base: Command,
             execute: function ( km, node ) {
-                renderNode( km, node );
+                if ( node.length ) {
+                    for ( var i = 0; i < node.length; i++ ) {
+                        renderNode( km, node );
+                    }
+                } else {
+                    renderNode( km, node );
+                }
             }
         };
     } )() );