How to subscribe to newsgroups after doing it first time

[pie93]

I can not figure out how you can subscribe to more newsgroups after I subscribe to some the first time.

[spearhead]

In the newsgroups page you can search for groups. By default it shows the subscribed ones, but if you enter a search term, it will show both subscribed and not subscribed. (searching for e.g. alt.bin will show (nearly) all groups)