emacs: Outline Motion

 
 25.9.2 Outline Motion Commands
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 Outline mode provides special motion commands that move backward and
 forward to heading lines.
 
 ‘C-c C-n’
      Move point to the next visible heading line
      (‘outline-next-visible-heading’).
 ‘C-c C-p’
      Move point to the previous visible heading line
      (‘outline-previous-visible-heading’).
 ‘C-c C-f’
      Move point to the next visible heading line at the same level as
      the one point is on (‘outline-forward-same-level’).
 ‘C-c C-b’
      Move point to the previous visible heading line at the same level
      (‘outline-backward-same-level’).
 ‘C-c C-u’
      Move point up to a lower-level (more inclusive) visible heading
      line (‘outline-up-heading’).
 
    ‘C-c C-n’ (‘outline-next-visible-heading’) moves down to the next
 heading line.  ‘C-c C-p’ (‘outline-previous-visible-heading’) moves
 similarly backward.  Both accept numeric arguments as repeat counts.
 
    ‘C-c C-f’ (‘outline-forward-same-level’) and ‘C-c C-b’
 (‘outline-backward-same-level’) move from one heading line to another
 visible heading at the same depth in the outline.  ‘C-c C-u’
 (‘outline-up-heading’) moves backward to another heading that is less
 deeply nested.