Have you tried Rhinoceros 3D - It's like MoI but offers many more import and export options - including DWG , and if I remember rightly it was always meant to play with AutoCAD even sharing the same Accurender format at one stage - Don't know if it still does though. It's gone beyond my basic needs, I am a garden designer but have no formal drafting knowledge other than what i learnt when at school, so the more pro features the more i get lost.

I can agree with the pop-up window but still see it as a non problem, move the mouse it closes, it don't appear unless you hover over an object and an ability to turn it off and on as needed and to set a timer event for it to close even if you don't move the mouse again, all would keep it's interference level to a minimum whilst providing a quick info sheet without having to scroll through layers and properties sheets to find the one you want - kinda made sense to me, but each to their own. :)

As for live commands - Press the TAB key and you can type in commands from the MoI command set available for here http://moi3d.com/2.0/docs/moi_command_reference.htm
you can even get the manual and print it for yourself if you're like me and need that tactile connection with a book/manual - That can be found here http://moi3d.com/2.0/docs/moi_help.pdf

All the best SouthPaw

Martin