[Suggestion]: The ability to have trains filter on passengers going to a specific destination (when passengers have destinations on)

[NicholasRB]

So I have a high speed rail network I built with longer long distance trains with them stopping at each station. I noticed quite a few of the passengers wanting to go to specific places more then others so I put in a shorter high speed train to just take them between 2 of the cities. Well it just loads any passengers and not the ones I want specifically and just transfers passengers around for no reason. That's why I'm suggesting this