Notebooks for iPhone Answers

Excellent App - I searched long and hard & Notebooks is the best! After the first day of using it I sold another coworker on it who immediately purchased it.

I would like to be able to have my entire Notebooks sync with Dropbox by sync from the Notebooks (top level) except I have a couple of books and a few notes that I don't want to sync because they contain sensitive data. Is there anyway to mark select books/notes not to sync so that I can otherwise sync everything from the top level?