Level Editor Collision

Is there a way to disable objects' collision with one another in the level editor?

I want to be able to have a castle wall half inside of a rock but when I press play it instantly explodes because of the collision. This is really annoying and for the life of me, if there is a way to disable it, I can't seem to figure it out how to be able to do this.

Chat, help me out here (Returning player after 5 years if anybody is wondering)