There're no docs.
You'll need to reverse engineer.
The key is understanding the model - the Trace feature can help you with that (see http://www.tersus.com/#Tag=Trace).
The contents of the web/JXZ37-4.16HP_1 and web/parts were created in a format which together with the model allows the navigation, zoom-in/out, etc.
For best results, use the Firefox browser..