I Am trying to make a simple "lock" where the player needs to place the circle shape in a circle slot, the square shape in a square slot and so and so but I can not find the shapes slot anywhere. Is it possible?

It's possible to envelop the wooden puzzle cube in other objects to create a chair-like effect, but the scale isn't very good.

But there are lots of ways to get creative with multiple objects. The easiest of which I found in editor being to take a cube, color it, scale the target shape thin, and place it on top of the cube, then color it the same hue but darker, for a bit of an optical illusion. It's not perfect, but since the slot can put it inside the hole, the effect should be decent as long as it doesn't actually have to visibly fall inside.

I am looking for something similar to the stools in the tutorial but I can not find the items in the room editor, or the funtion to substract a shape from another to make the slot/hole