new controls for the Room Control Screen

At the control screen of the Room Control Program the tank symbol displays the right amount of oxygen in the main tank of the airlock or hangar now. The screen scrolls through all airlocks and hangars automatically, but you can switch to manually brwosing between the rooms. You can change the automatic speed as well, if it's activated. No new key bindings are needed, it using the existing active, primary and secondary commands.