At Rill Architects we run ArchiCAD on macOS. If you work at Rill, this is your stuff. If you don't, but you work in ArchiCAD, you may find something interesting. Anybody else, I don't know.
The copy transformation modifier key is now Option instead of Command. Instead of drag a copy being Cmd+D+Cmd, it's Cmd+D+Opt. Same for mirror and rotate.