Many versions ago we used to have a curved/domed roof option.
But that disappeared with the implementation of the shell tool.
Which can mimic a curved roof, but of course is not a roof, so you can't apply accessories.
The curves and domes were really just many flat segments at different pitches.
The more segments, the curvier they looked.
I am not so sure they would work particularly well with the accessories either.
Another thing you could try is creating a mesh to represent the curve of the roof.
And then use the Mesh to Roof add-on (goodie) to convert to roof planes.
One of the forum moderators.
Versions 6.5 to 25
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