Yeah, that would be brilliant. This should be added to all houses and castles and you should be able to do mining and lumberjacking there and maybe add a little monster spawn. Maybe add a door to a huge underground area where you are 100% safe & private. Even better, create a basement the size of the whole map where you are safe&private. For convenience, make it accessible from moongates where you can choose between "Basement" and "Felucca".
