
Make your tree more efficent and convenient.
Simply as you use Windows Explorer's treeview, Skytree support or kind of tree actions you may use.
Drag one node and move mouse, arrows may help you know the right dropping place,release mouse button to drop or press '[ESC]' to cancel dragging.
Note: You can't drop on an invalid node or the node is not allowed to drop(see 'allowDrop' property).