Some windows conventions are implemented on VC 2D/3D, but not others, which slows workflow when you have to stop and think about them. Habitual use of those conventions is reinforced because they're common to multiple apps, not just CAD. I use ctrl z, undo last action, which works, but redo is ctrl+shift+z rather than ctrl y. Most annoying is escape, which in most windows apps drops selection in all circumstances. In VC, it drops selection conditionally, not for all tools or circumstances ie, it doesn't drop selection for transformation tools, I have to switch to selection mode, deselect then reselect. Unless there's another way? In any case, if you're used to windows conventions, it's unconventional.... I think implementing windows conventions more fully for PC would make VC and Shark less "alternative" for marketing to PC, as well as easier to use. I'm aware of a couple of other users like myself who use both TC and VC, for example. I can't see myself going all TC or all VC because they're complementary rather than alternative. Some things that're a bind on one work much better on the other, and some conventional functional commonality would help. I don't know if it would need more diversified code streams between Mac and PC, but IMO it would widen appeal on the PC side.

murray