Creates a feature-rich train logistics network through cybernetic combinators. With just this mod you can coordinate the economic inputs and outputs of your entire megabase.
main benefit of the combinator is that its blueprint compatible, im not sure how easy it would be to track the custom data on existing item (train station) inside blueprint.
Something like this could be forked and modified for use in Cybersyn. My favourite part is possibility to set requested stack size instead of item count (mod calculated that itself).