You can create a simple custom component of ur own. Here is the code:
package com
{
import flash.events.MouseEvent;
import mx.controls.Tree;
public class ForceCtrlTree extends Tree
{
override protected function mouseClickHandler(event:MouseEvent):void
{
event.ctrlKey = true;
super.mouseClickHandler(event);
}
override protected function mouseDownHandler(event:MouseEvent):void
{
event.ctrlKey = true;
super.mouseDownHandler(event);
}
}
}
Import this package into your project.
Then declare the tree component as follows:
Now you need not click ctrl to select multiple objects.