Enhance train pathfinding to allow reversing on any bidirectional track

When using rail lines players can setup a station to act as a reversing point prior or after a "real" station. Train networks don't get to define this setup. It would be a great enhancement if train pathfinding would consider stopping and reversing on valid bidirectional tracks. Or alternatively, allow waypoints to optionally act as a reversing point where trains will only momentarily stop to reverse.
The result would allow train networks to access stations that require a reversing move. And generally, allow more flexibility to station and depot design. It would even approximate real shunting movements unlike I've seen in any other game yet.

I haven't tried it, but isn't it possible to set station as "cannot be skipped" - which is mentioned to be used for that? Or is it working only in "line" mode and ignored in "network" mode?

That only works in line mode. Networks always dispatch directly to a cargo station with no option for an intermediate reversing waypoint. I'm suggesting pathfinding to consider reversing where able without the need for explicit waypoints.