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.
A 2D symbol for HVAC supply, return, or exhaust fan. There is an optional label for the size, generated automatically from the height and width. The height and width snap to whole inches.