controlling the player path

[gwgardner]

In the standard Bath to Templecombe scenario, 'Running on Empty,' when the player train reaches Evercreech Junction it has to stop, uncouple, then go forward and then reverse back onto another track to get water, then forward again and reverse back onto the original track to couple to its consist. The whole time the player path is controlled by the system - no need for the player to set the turnouts.

I went in to the scenario editor and could find nothing telling the system how to set the player path during that reverse onto another track, etc.

So my question is, what was it that made the system set the turnouts and player path properly?

Hope this question makes sense. Thanks for any help.