request features #13

* Would be nice if there was a way to constrain movement to a single axis while dragging elements (ex. holding shift while moving a button up will make it only move up and down and not side to side and vice verse)
* Would also be nice if there was a toggle to make buttons and windows snap to each other

• Also, not sure if intended, but if you select a group of elements, then press the arrow keys to nudge it, it will change the selection in the direction of the arrow instead of nudging the object. You have to drag the elements with the mouse before you can nudge the elements again, not really an issue, but it is annoying