Interesting that they seem to have adopted the Renovation Tool add-in from Cadimage/New Zealand Tools. However, it was not completely implemented. As I recall, the same tool could be adapted to be an "Options Manager", specifically for different variations of a new house plan. Cadimage put some thought into this, perhaps their input would be valuable.
I also posted a tirade
here.
Chuck Kottka
Orcutt Winslow
Phoenix, Arizona, USA
ArchiCAD 25 (since 4.5)
Macbook Pro 15" Touchbar OSX 10.15 Core i7 2.9GHz/16GB RAM/Radeon Pro560 4GB