1) Click on Surveyor
2) Pick your favorite route and select Load.
3) Once the routes loaded press the F7 key (or click on the icon that looks like a wheel)
4) Find your favorite loco in the list and once found highlight/click it.
5) Then click on the + sign and place it on the track.
6) Click on Save and give the session a name.
7) Exit out of Surveyor
8) Click on Main Menu
9) Click on Driver
10) Click on your Favorite Route
11) Click on your session
12 Click Load.
HTH
Dave