Pushing a boulder off a cliff(Passabilty)

My goal is to have my guy move up stairs then push this boulder to the left off a cliff onto a spot below(down/left) I made 1 part of the boulder to test out and it(move event) won't move unless it follows the passabilty rules, which is bad because if my guy can follow the boulder the illusion of height is shattered. I tried jump but can't. The only thing I can think of is teleport but it looks horriable.

Thank you for any input you can give.