Hello.

Apologies if this has been asked before, but I really only use SH3D for aerial views, and I want to add a piece of furniture with my own aerial view, or edit a current piece to have my aerial view, I can create this in photoshop or something, but how do I import it, do I need a specific file type or?

Very confused. Basically I want to import a stairs up and a stairs down, but just literally a rectangle with lines and an arrow on it