I have G gauge in the garden in addition to the O indoor layout and this is probably a question that only perhaps Lee or someone who is also into the RC hobby could answer..it might be a stupid inquiry. I have a early version of the G gauge Aristocraft Train Engineer that is simple. A receiver that takes power from the transformer and using the radio controller controls the power to the track..thats all it does. No bells, whistles, light controls etc Its very straight forward. Heres the question..could RC equipment that does the same thing be placed in an O gauge engine, or more likely, a trailing piece of equipment, say a B unit or boxcar? Do RC controls in other hobbies( boats, airplanes, helicopters, cars) have more than one channel that could be used for more than one engine in O scale? Has anyone looked into or tried this?