Our account system does not allow us a way to change usernames or move licences at this time. Account names are not currently shown in-game however, and they're not likely to be in the future either, since part of our idea for TUG is to add to the game's immersion by not having player nameplates. We do plan to merge forum accounts and game accounts in the future. And expanding on our account system to allow players to change more of their own account details is definitely something we have on our to-do list.