Hi Robert,
The four categories are:
1. Full USFM -> usfm2osis.py
2. Basic USFM -> usfm2osis.py
I found it easier not to create my own OSIS converter in bibledit-web as that saves a huge amount of time.
Thank you for the very interesting link to the Bible Drop Box. It is encouraging to see an initiative like this. Wishing you well with it.
Teus.