When I click "undo" or "redo", I'd like to know what I'm undoing. Show a list of undo actions, similar to how Word or Visual Studio work. This would also allow us to undo multiple actions at once rather than telling Inventor to undo over and over again.
Like Word would be convenient, but like Visual Studio would be better. Keep a long list of the actions we've done and give it a scroll bar.
Also, I read somewhere that closing a document clears the undo history. If I'm remembering correctly, can that be fixed?