1. I would like to have a shortcut to create virtual copies.
The menu doesn't mention one, Mr. Evening's Lightroom book, doesn't. So maybe there isn't one.
Can you customize keyboard shortcuts?
2. How do you erase virtual copies? If you hit the delete button, Lightroom proposes to erase the master file. Which, of course, I do not want to. I couldn't find a "delete virtual copy" item in the menu.