The only way I know this will work is if the projected slab is in a different layer that you can turn off.
Or you could move the slab out of the way, add the dimension and then pull the slab back.
When using gravity and the level dimension then it will always snap to the slab at the highest level.
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
