There's a problem that the elevated train stations have one way tracks.

I would love to use one as a hub station, meaning I would need diamond switches.

The elevated stations however need to be connected with bridges which can't have switches on them. So the two way tracks are kind of necessary. Even if someone wants to make them one way it can be done with signals. I also tested to be sure and yes the train could not path through the station backwards.

how to make underground station?

I have an issue with the above ground small train station; trams are having pathing issues.

how to do in order for the trains to go?

I have experienced few bugs my self. I am not sure what is causing them to be honest. But sometimes I got the train route fixed by using waypoints.

Love this mod <3 Only thing I've noticed is that freight trains will refuse to route past via an underground station- compared to the above ground regular passenger stations where a freight train will happily pass though it. Any way to fix that?

Also I did this mainly to allow Šukafon under ground without needs to turn it into metro as well, I already added Metro compatible tram mod for my own use.

Now trams can go on rails, on street and underground. Only water and air are the limit (though I have already experimented with water tram and there indeed is a blimp on workshop using tram body... well I guess in this case only space is the limit... oh wait, TV series KOSMO already did that. LONG LIVE THE TRAMS!)

This is something you expect from Purplik.

Thank you! This will be awesome for making partially underground tram lines.