It'd be convenient if you could manipulate and move logic blocks around without having to reset their connections. So when you finish wiring your rotating landing ramp, you could move all the logic and hide it. Also for when you screw up and put all your logic 3 blocks to the right of where you wanted it to be. It could probably be bound to a button, so If you were in advanced build mode press an unused button and then you could move your connected logic block wherever you want.