I have not read all the comments but I think this is a rather general thing: I want to use this mod to create curvy island platforms with decreasing width to the ends, like they are often used for metro/S-Bahn tracks.

I built overlapping 5m platforms on each side and executed the Freestyle script 2x for each side. I get a single station but the result is visually unsatisfying because I now have 2 times the assets and they are overlapping.

https://steamcommunity.com/sharedfiles/filedetails/?id=3373521576

I also tried this

Originally posted by Mod description:

You can share a platform between two terminals, for example the first 100 metres with terminal 1 and the rest with terminal 2. If you do that, the heads will connect automatically if they are 7 metres apart or less. If they are farther, use end exits and connect them with a suitable path (street menu).
You cannot share one stretch of platform or track among multiple terminals.

but it's not like the platform is "filled" into the space of the two tracks.

Am I getting right that it is not possible to have an island platform of adaptive width?
Is there at least a way to reduce the automatic platform assets?