When you place an L SD70 in Surveyor, select the ? and click on the loco. Put some fuel and sand in it. In Driver, Cab mode press [ to view back panel. LMC&Hold on Isolation sw pushing up to move sw to start. LMC&Hold start switch and pull down and hold until engine comes to idle. Put iso sw to run. These locos only work in TRS2006 at this time.
Bob