I’ve checked the GroupWise API, and cannot locate any calls that would allow for the automatic creation of IMAP or NNTP folders. Subsequently, Formativ won’t be able to create them either.
I’ll ask Novell about this and post a reply back in this thread.
I notice you have already asked this question in Novell’s support forums. As I was going to ask in the same forum, lets wait and see what responses are forthcoming.