Quote from Railmaster Support although it was in 2014. "RailMaster already makes it relatively straightforward to add locos from any manufacturer to the program and also to profile them for scale speed operation. Hornby locos going back to 1975 have been added simply to make things easier for customers and you must bear in mind that in order to add locos we must have them in our possession. This is not practical for other brands as they may not be in a position to provide all of their locos to us and it would be prohibitively expensive to purchase them all. We have, as you will notice, added all the major loco decoders and accessory decoders and there are built in profiles for common Bachmann steam and diesel sound loco functions (read the RailMaster PDF guide), so whilst it would be the icing on the cake to have every loco from every manufacturer built in, RailMaster has gone to great lengths to ensure adding non-listed locos is a simple thing to do."