I want a one-shot AI train different from the ones emitted from portals every 15 minutes, to go past as the session starts. So I place the unique AI on the mainline outside town, assign a driver and give him navigate to trackmark and navigate to portal commands, and he don't move. If I select the driver all the commands are shown, but he's not driving his schedule, he just sits there. I swear I had this working once before, but I can't remember if I did anything different.