I have a bit of an issue with my new Space RPG, I can't seem to find out how to make multiple obects lay over each other, for example, when I place a flashlight, then place an access card over that flashlight, the card replaces the flashlight instead of sharing the tile with that. This makes it really annoying when trying to make something like a rack of clothes.

Also, I can't seem to make cupboards or chests that will keep objects in them, and while open and close when you click it. All I can get is a meager ammo crate that can open, but then stays stuck open, so it would be nice if someone could show me how to do that in coding.

Thanks for all your help, I really want to make a good game.