Nothing came up when I searched the forum except people talking about stuff that happens when they set their trains to manual

This thread has some dot points, but certainly looks nothing like a manual, and is completely useless for someone trying to learn how to use the mod.
This youtube video is basically the only resource I could find for beginners wanting to learn how to use this mod.
I asked google too, and it just brought me here and suggested some irrelevant fluff.