The weird UI separation in the BIM workbench I did a few months ago didn't seem to raise much enthusiasm

and indeed I think it was more confusing than anything else... So now I switched back to something more classical with 3 main areas:
- 2D drafting
- 3D modeling
- Modification
I think this is actually way better...

- Screenshot from 2019-05-15 21-31-53.png (209.18 KiB) Viewed 2461 times
Also, you'll notice several new tools there: Structure has been split between Column, beam and slab, and Window between door and window.
This is still the same tool, only it starts in a different mode and with different presets. Same as the move and copy tools.
In Arch, everything still stays the way it was.
It's funny, because even being myself a power-user, I like having a different button for beam and column. It's one click less, after all...
There were some underlying changes needed for this in Arch too, so you need a bleeding edge of FreeCAD for these new tools to work in BIM. Otherwise, they will all do the same thing...