Since engine DLC manuals are no longer being supplied and tutorials cover only a limited range of operations, we're left guessing about even the most basic techniques. For example, there's nothing anywhere, including Carson Young's document, about changing cabs in a two-engine lash-up. The first available timetable session for this engine involves front coupling a pair of engines to a rack of wagons and then driving those wagons to a destination. To me, driving in reverse all that way makes no sense, so I've guessed at shutting down the cab of the initially driven engine and starting up the other engine, but I cannot seem to shut down the train brake in the first engine before moving to the second. Leaving us without manuals and with incomplete tutorials is just plain disgraceful, in my unhumble opinion.