Yard Panorama view from cab of Driver #2 (Left bar of stacked AI Driver faces); TRS2006 bottom line shows "Driver Command" Icons of a scripted task for the AI Driver. The leftmost icon is "Wait for Trigger" event, at which case the next Driver Command becomes active. Trainz Rules and Driver Commands are scriptlets which interface with the Simulation software to pass information, test events, and allow the extensible programming characteristic of Trainz.