Netherlands
Joined: Apr 8, 2022
Post Count: 789
Status:
Offline
Re: allow negative z-value in all levels
That is not going to happen because it would create other problems in the software. This is where you use the levels.
If you need an object at -20 you add a level at -20 and place the object there. (You can create levels with a negative elevation: below ground.)
Grouping over multiple levels can be done but is not advisable unless for pure organization of you furniture. The reason is simple: If you copy/past the group everything is pasted on the same level where you paste. In other words: the different levels are lost.