I'm not sure if it possible with the current NRMA standards for DCC, but I would find it very useful if Railmaster could detect all of the locomotives on the layout in realtime and provide them as a quicklist for the user to select from. Currently you
have to search through your entire list, or from across a number of groups if you want to control a loco placed on the layout. In the meantime you have lost the controller for any locos already selected.