There is a serious omission in mapping way-points.
When a line is mapped a colored line appears when each station is mapped, showing the line mapped so far. Now we can map way-points as part of line I would expect the same to occur when mapping a way-point. This does not happen!
Trains get a mapping from station to station. Waypoints help the game decide what route to take. But since a train is not designed to stop at a waypoint, the game will not calculate a route to the waypoint. Why would you want to send a train to a place where there is no station?
I do not understand your comment! Surely way-points are part of the mapped route? They are not just means of ‘helping’ the game to find a path. When mapping a route one needs to see the path the trains are to follow, especially when routing through complex junctions. That’s why we need to see the planned route path at each way-point.
This is the same as what happens in CIM2 that may Train Fever gamers are familiar with.