Does anyone know of a booking engine that allows different via points to be specified for the outward/return legs, ideally also allowing one to specify a stopover time? Something similar to what bahn.de offers, but that can sell National Rail tickets?
Thanks
I agree with
@Hadders - Trainsplit/Trainscanbecheaper will do most of what you want.
You can set arbitrary stop points ( specified separately for in-bound / out-bound ) and you can set an extra time (up to 99m) for changes - again with different times for out and back.
However, if you're changing at multiple stations, you're limited to just one extra-time setting for out-bound and one for in-bound.
And if you want to break your journey at a station where you're not changing trains then, whilst you can request a train that stops there, you can't specify a break at that station before resuming (at least I can't spot a way of doing that.)
Nonetheless, I think that Trainsplit/Trainscanbecheaper offer more flexibility than the other UK rail retail sites.