Searched for this, but the one solution for 2006 "set Adair as the driver" isn't working for 2010. I made a session with a player engine in a yard and AI trains spawning at 12 minute intervals, rather than going into learning how to use the "instant" portal stuff I added one train already on the track with some AI instructions. Problem is that's now the new default player train, how do I reassign the other engine as the player starting consist?