On Land

Environment Information
At Rill Architects we run ArchiCAD on Mac OS X. 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.
Rectangle Profile
Pretty tricky
This is so trivial/obvious that I hesitate to point it out.

You can't rotate a conventional beam element about the long axis. (Why? Dunno.) But you can rotate profile beams. So you just need a rectangular profile.

But if it's so obvious, why isn't there such a profile in the default templates, among the faux-proof-of-concept distorted steel shapes? And why wasn't there one in our templates until yesterday? Dunno that either.