Something that's gotten my attention time and time again, is trains staging through stations they shouldn't be touching during backups- and on very large backups with very complex networks and lots of trains, the constant pathing (I think it's the pathing) of the trains trying to find alternate routes causes a huge amount of lag.

So can we get a feature on the waypoint stations that says "DO NOT PASS unless headed to <stationlist, area, specific product pickup/delivery, fuel, etc.>", to better control train routing?