You can't split a multi-plane roof but you may be able to edit it to get the roof you want - this could prove difficult though depending on what you need.
The easiest way is to split it into single roof planes and then you can do what you need with each plane.
Barry.
One of the forum moderators.
Versions 6.5 to 27
i7-10700 @ 2.9Ghz, 32GB ram, GeForce RTX 2060 (6GB), Windows 10
Lenovo Thinkpad - i7-1270P 2.20 GHz, 32GB RAM, Nvidia T550, Windows 11
