STK: opening the librarynode "fitchbarrel" in blender

[sommejul]

over the last weeks I've created a track for STK only possible with a special node of the folder "library". As I was trying to open a node in blender for hours without getting an result I had the idea to ask an main developer of tuxkart how to open it or if it is possible to upload an add-on node so that the track is possible.
In the following video you can see the track:
https://www.youtube.com/watch?v=adNV0OQ ... e=youtu.be

thanks in advance,
sommejul