Hello,
I replied you over an e-mail, however, I'd like to share the answer for other users. Basically, you need to use our API to obtain particular data and process them as per your needs (the Forum Group control is not available via the VS toolbox - there are just controls from within the
CMS Controls assembly). Please find more info about the forums API in our Developer's Guide:
Forums API.
Best regards
Ondrej Vasil