If it does, then it's probably in the screens somewhere, which means it's probably not simulated in game, since DTG probably didn't simulate the screens.
There is no slow speed control. It would have been nice to have in the services where you are at the depot.
Your question is not clear, maybe because you are not familiar with the interface or it is irritated by the network.
I suspect that my question is not clear because I did not ask a question. Is it possible that you quoted the wrong person? The OP asked if the locomotive had a 'slow speed control'. If it did, where could they find it?
