For Magicland cars you can change the car number and the destination board as follows. After you've opened Surveyor, selected the Trains popout tab, selected a subway car and placed it on the track, select the Edit Properties question mark and click on the subway car. Scroll down if required to see the Destination **Undefined** line and click on Undefined. Select from the list and click the green checkmark. The data for the sign board list and the graphic displayed in the destination board are contained in a texture kuid so you can edit them to any values you want.
For JeffMorris it's the same procedure except all you can change is the car number.
Bob