Hi there, haven't completed the scenario, but am excited to see new ones coming. I've been playing with building one myself and learning the LUA DSL.
In early playing with it, I don't love teleport disabled by default. At least, the problem for me is you can't access the external and rear views, which I wish was separate of teleporting. In addition, I didn't know which way to run when the scenario starts to even find the train! (It's completely out of eye sight from the station.)
Minor note as well, but should you have to get within 50m of the first shunting stop signal (1km away from the switch) before changing cabins to reverse? This is more a curiosity of real railroading -- would the dispatcher just instruct you to move past the switch and stop the train?