TL;DR
Make dynamic train station names available via circuit network parameter substitution.
What ?
Having parametrized blueprints is great, but train station names are fixed. The amazing circuit parameter in train interrupts could be used outside of them, for example in train stop names. It ...

I was about to make this suggestion, when i discovered making multi-item dynamic request stations is virtually impossible. Or too hard
I really want to be able to play without mods (cause achievements), and single-item logistic train stations are okay, but having a regex expression matcher would ...