The last time I looked at a loco cab all they used secure it was, take out the reverser, tie the hand brakes, and maybe Switch Lock the cab doors.
They might run a pilot but most AMTRAK hoggers do some qualifying runs in fright engines as the controls are the same in booth types of engines it more knowing where to look for signals and how to handle a train and what speeds are indicated.
Why, I'm wasting time with a Troll?