gnus: Subscription Commands

 
 2.4 Subscription Commands
 =========================
 
 The following commands allow for managing your subscriptions in the
 Group buffer.  If you want to subscribe to many groups, it’s probably
 more convenient to go to the SeeServer Buffer, and choose the
 server there using ‘RET’ or ‘SPC’.  Then you’ll have the commands listed
 in SeeBrowse Foreign Server at hand.
 
 ‘S t’
 ‘u’
      Toggle subscription to the current group
      (‘gnus-group-unsubscribe-current-group’).
 
 ‘S s’
 ‘U’
      Prompt for a group to subscribe, and then subscribe it.  If it was
      subscribed already, unsubscribe it instead
      (‘gnus-group-unsubscribe-group’).
 
 ‘S k’
 ‘C-k’
      Kill the current group (‘gnus-group-kill-group’).
 
 ‘S y’
 ‘C-y’
      Yank the last killed group (‘gnus-group-yank-group’).
 
 ‘C-x C-t’
      Transpose two groups (‘gnus-group-transpose-groups’).  This isn’t
      really a subscription command, but you can use it instead of a
      kill-and-yank sequence sometimes.
 
 ‘S w’
 ‘C-w’
      Kill all groups in the region (‘gnus-group-kill-region’).
 
 ‘S z’
      Kill all zombie groups (‘gnus-group-kill-all-zombies’).
 
 ‘S C-k’
      Kill all groups on a certain level (‘gnus-group-kill-level’).
      These groups can’t be yanked back after killing, so this command
      should be used with some caution.  The only time where this command
      comes in really handy is when you have a ‘.newsrc’ with lots of
      unsubscribed groups that you want to get rid off.  ‘S C-k’ on level
      7 will kill off all unsubscribed groups that do not have message
      numbers in the ‘.newsrc’ file.
 
    Also SeeGroup Levels.