I run a single engine pulling 4 C&NW Bi-levels. As a child in the 60s and 70s riding this every week, I never rode it with a B or additional A. I tried to put the C unit in the layout to run. It says the engine is already in the remote, but does not respond to the A unit's commands in the remote.
Is it possible, and how to run this unit as a single stand alone locomotive? Thanks in advance.