I see there's already a request for this:
https://sourceforge.net/p/sweethome3d/feature-requests/451/
My solution? Being able to add more than one 3d model to the same furniture. Then adding a new column like the visible one.
Maybe being able to add multiple states and have a dropdown list with options for furniture like this
Still a bit of work, but a bit better than having to have 2 models to move around and having to toggle then visible/invisible for the open/close.
