If you don't have objects to do these sort of surrounds, then you could possibly make them with morphs directly on the elevation/3D model.
Or probably easier to create them with complex profile walls or beams in plan (lying flat).
Also use slabs, roofs or other tools to get the shapes you need.
Then convert to morphs (edit some more if you need to), rotate to stand them up and reposition them to where they are needed.
Barry.
One of the forum moderators.
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