Does anyone know of a command or rule in which I could control signals? I want to be able to tell a train to drive some where but be able to change the signals. Say there is a train coming into a town and I would like to stop it outside of the town so I can finish some switching. I would like to be able to tell the signal outside the town to turn red and not change until I tell it to do so. Is there anything out there that would allow me to do that?