How to move around in widget.

Player has a big skill tree and i want to move around in the skill tree while pressing right mouse button. How can i implement that, any resources or advice ?

I think you should make the logic of movement inside Drag and Drop Opearion.
You need to pass references to the widget you need to move into it. The easiest way is if it is inside the Canvas Panel, then you can get Slot As Canvas Panel Slot and change its position.