At Paddington there could be a blue marker and when you press it you get asked if you want to go to GWE. Then it loads and transfers you to GWE
I was thinking the same thing could be done at Brighton Station. A portal allowing you to transfer over into either the ECW or BML timetable at that exact time of day.
Exactly the right idea because the London Underground Bakerloo line is supposed to feed the GWML London Paddington to reading section. Future London Underground routes that intersect with BML or GWML then this feature should be implemented I can also see this with NYC Subway at Atlantic Terminal and Penn Station.
The problem is: The sections between Paddington Main Line and all the underground platforms (besides partly H&C and Circle) are not modelled in either GWE or BKL, so it would require both routes to be modifed
I think we should stop that pipifax and ask for a merged route. It would enhance the 24h timetable mode so much.