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No, you can't put a hole in a BuildingSurfaces:Detailed object (other than as a sub-surface). You can however put two or more BuildingSurfaces:Detailed objects together that result in a hole.
Look at the stacked spaces on the left of the screenshots in this post. It shows how to model a "hole" in the roof by having 4 non-convex surfaces.
No, you can't put a hole in a BuildingSurfaces:Detailed object (other than as a sub-surface). You can however put two or more BuildingSurfaces:Detailed objects together that result in a hole.
Look at the stacked spaces on the left of the screenshots in this post. It shows how to model a "hole" in the roof by having 4 non-convex surfaces.
No, you can't put a hole in a BuildingSurfaces:Detailed object (other than as a sub-surface). You can however put two or more BuildingSurfaces:Detailed objects together that result in a hole.hole, for example two c shaped surfaces.