I usually set the DCC address to the cab number and leave acceleration, deceleration, and momentum on minimum levels.
I also make up "cheat sheets" (stopping distance from full throttle, grade crossing horn distance at several throttle settings, speed at given throttle settings, map of function buttons) its a 3"x5" card that I make up for operators to carry for operations sessions.
Haven't sold one that I haven't provided some end user support for.