It would be a lot easier to create custom rooms (and I'm sure it would make it easier for the Gaslamp team to create official rooms as well) if, in addition to numerals 1-9, some of the other unused characters were made available to designate locations within a room in rooms.xml Another thing that would make rooms easier to mod (and to create officially) would be if some of the room elements (like the Evil Chest, the Krong Altar, the Dredmor statue, the Vending machines, etc.) were given their own dedicated characters in the system, like we have for shop pedistals.