Drag the tree?

I am a dhtmlx Tree user using a fixed size div area in html page and introducing the dhtmlx Tree in this area. Because the tree size is usually bigger than the div area, scroll bar seems necessary in my scenario. Does dhtmlx Tree have alternative solution of scroll bar? Maybe something like Google Map that user could drag tree and browse the whole tree.

The tree component supports only default behaviour, when tree size bigger that size of container - scrollbars with appear automatically.