Undo shortcut at collab mode
When working together at a project, the undo shortcut works for the whole project, not for each user. So when you undo something, you automatically destroy your partners work while spamming ctrl + z (or y). That makes collaboration very hard.
As we haven't seen a response to our question in over three months, I'm marking it as inactive. Please do feel free to file it again if you still want this feature!