One way is using the other ArchiCAD Tools:
1. The top board: Roof Tool
2. Extensions to the vertical casings: Column Tool
3. Scroll brackets: Morph Tool or Custom Profile with a short Beam
Once created, these can be copied around if there are similar windows.
David
David Maudlin / Architect www.davidmaudlin.com Digital Architecture AC29 USA Perpetual • Mac mini M4 Pro OSX15 | 64 gb ram • MacBook Pro M3 Pro | 36 gb ram OSX14