I setup news.opera.com and subscribed to opera.mac.

In the left window (sidebar?) I have an arrowed (collapse/open) line which
says Newsgroups at news.opera.com (temporary)
Below which I have opera.mac

I expect that when I click on Newsgroups to see a full list of newsgroups
available at newsgroups.Opera.com. instead I only see what displays in
Opera.mac.

How do I step up a level?
Also, How do I fetch new messages to Opera.mac

Also: what does (temporary) mean or tell me?

thanks