At BML you can step out of the train, walk to a signal and contact the signaller. IMO a useless feature, as it's much easier to contact the signaller directly from the cab. I wonder, if this feature has an impact on performance?
I don’t think it affects performance , the same feature exists on SEHS and that has no performance issues
Thanks for the info. It was just a thought. Didn't know that SEHS has the same feature as I don't own this DLC.