 Group Data
Group Data
  The Group Buffer
The Group Buffer
 Group Score
Group Score
All groups have a level of subscribedness. For instance, if a group is on level 2, it is more subscribed than a group on level 5. You can ask Gnus to just list groups on a given level or lower (see Listing Groups), or to just check for new articles in groups on a given level or lower (see Scanning New Messages).
Remember: The higher the level of the group, the less important it is.
| S l | Set the level of the current group. If a numeric prefix is given, the next n groups will have their levels set. The user will be prompted for a level. | 
Gnus considers groups from levels 1 to
gnus-level-subscribed (inclusive) (default 5) to be subscribed,
gnus-level-subscribed (exclusive) and
gnus-level-unsubscribed (inclusive) (default 7) to be
unsubscribed, gnus-level-zombie to be zombies (walking dead)
(default 8) and gnus-level-killed to be killed (completely dead)
(default 9).  Gnus treats subscribed and unsubscribed groups exactly the
same, but zombie and killed groups have no information on what articles
you have read, etc, stored.  This distinction between dead and living
groups isn't done because it is nice or clever, it is done purely for
reasons of efficiency.
It is recommended that you keep all your mail groups (if any) on quite low levels (e.g. 1 or 2).
If you want to play with the level variables, you should show some care. Set them once, and don't touch them ever again. Better yet, don't touch them at all unless you know exactly what you're doing.
Two closely related variables are gnus-level-default-subscribed
(default 3) and gnus-level-default-unsubscribed (default 6),
which are the levels that new groups will be put on if they are
(un)subscribed.  These two variables should, of course, be inside the
relevant valid ranges.
If gnus-keep-same-level is non-nil, some movement commands
will only move to groups of the same level (or lower).  In
particular, going from the last article in one group to the next group
will go to the next group of the same level (or lower).  This might be
handy if you want to read the most important groups before you read the
rest.
All groups with a level less than or equal to
gnus-group-default-list-level will be listed in the group buffer
by default.
If gnus-group-list-inactive-groups is non-nil, non-active
groups will be listed along with the unread groups.  This variable is
t by default.  If it is nil, inactive groups won't be
listed.
If gnus-group-use-permanent-levels is non-nil, once you
give a level prefix to g or l, all subsequent commands will
use this level as the ``work'' level.
Gnus will normally just activate (i. e., query the server about) groups
on level gnus-activate-level or less.  If you don't want to
activate unsubscribed groups, for instance, you might set this variable
to 5.  The default is 6.
 Group Data
Group Data
  The Group Buffer
The Group Buffer
 Group Score
Group Score