So I'm back to the original problem with Mumble. We've downsized in the move, and we only have one laptop currently. Sin's username has the current certificate for Mumble, so I do not want to mess that up. I have no access to the previous computer to export the certificate for my own account... If I were to create a new one- would it replace Sin's, or would it just be a file I am creating that I can switch in and out?