There is a current workaround to do this:
Create the Complex Profile and apply it to a Wall or Beam.
Draw it on the edge of the Roof, then perform a Solid Element Operation with the Roof as Target, the Wall/Beam as Operator to remove the overlapping parts.
But you have to manage it, maybe keep the Operator grouped with the Roof.
You can put these operators on a separate layer that is wireframe and normally hidden, shown only when managing SEOs.
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