Perfect, this is useful. This example shows just how useful.

I tried to do this building on a laptop, near impossible before.
(It is probably not a bug, but FYI: on a WinPC CTRL-ScrollWheel does not zoom in this window. And in the 2d window, CTRL-ScrollWheel also does not work when drawing walls or rooms. But this is not new to sh3d 4.2)

ok