How to nest a group in another group? (X3)

I’m wondering if there is a way nest a group in another group in Endnote X3. I don’t find the function.

Not an option currently, but there is a suggestion in the other forum to impliment a nesting structure.  Go and support it, via Kudo’s, replying (and quote) or giving it stars?  (probably reply quote has the most impact but the rt other methods of suppocan’t hurt). 

http://community.thomsonreuters.com/ts/board/message?board.id=en-suggest&view=by_date_descending&message.id=212#M212