BlueBrick sports its own "Parts Tracker" where you can get XML files containing info about
train parts and how they interconnect etc.
Those even reference unofficial files on the PT, which is good because you can already play with the files,
but which is also bad if files this way become "semi-official".
This is one reason why I was putting so much energy in finally getting the 12V train files official for a first iteration.
Maybe you need to update these XML files to solve your problem?
Note that I'm currently in contact with the author of BlueBrick because his XML files
will need an update once we officially release the 12V files.
If you've got trouble with the tool I suggest that you get in contact with Alban as well.
http://bluebrick.lswproject.com
train parts and how they interconnect etc.
Those even reference unofficial files on the PT, which is good because you can already play with the files,
but which is also bad if files this way become "semi-official".
This is one reason why I was putting so much energy in finally getting the 12V train files official for a first iteration.
Maybe you need to update these XML files to solve your problem?
Note that I'm currently in contact with the author of BlueBrick because his XML files
will need an update once we officially release the 12V files.
If you've got trouble with the tool I suggest that you get in contact with Alban as well.
http://bluebrick.lswproject.com