To mark a specific article for reading, type the letter next to it (in lower case). To mark a specific article and all of its responses, type the letter and an asterisk, for example:
a*
To un-select an article, type the letter next to it (again, in lower case).
C Cancels an article (around the world) that you wrote. Every article posted on Usenet has a unique ID number. Hitting a capital C sends out a new message that tells host systems that receive it to find earlier message and delete it.
F To post a public response, or follow-up. If selected while still on a newsgroup "page", asks you which article to follow up. If selected while in a specific article, will follow up that article. In either case, you'll be asked if you want to include the original article in yours. Caution: puts you in whatever text editor is your default.
N Goes to the next subscribed newsgroup with unread articles.
P Goes to the previous subscribed newsgroup with unread
articles.
G news.group Goes to a specific newsgroup. Can be used to subscribe to
new newsgroups. Hitting G brings up a sub-menu:
u Goes to the group and shows only un-read
articles.
a Goes to the group and shows all articles,
even ones you've already read.