org: TODO basics

 
 5.1 Basic TODO functionality
 ============================
 
 Any headline becomes a TODO item when it starts with the word ‘TODO’,
 for example:
 
      *** TODO Write letter to Sam Fortune
 
 The most important commands to work with TODO entries are:
 
 ‘C-c C-t     (org-todo)’
 
      Rotate the TODO state of the current item among
 
           ,-> (unmarked) -> TODO -> DONE --.
           '--------------------------------'
 
      If TODO keywords have fast access keys (see SeeFast access to
      TODO states), you will be prompted for a TODO keyword through the
      fast selection interface; this is the default behavior when
      ‘org-use-fast-todo-selection’ is non-‘nil’.
 
      The same rotation can also be done “remotely” from the timeline and
      agenda buffers with the ‘t’ command key (SeeAgenda commands).
 
 ‘C-u C-c C-t’
      When TODO keywords have no selection keys, select a specific
      keyword using completion; otherwise force cycling through TODO
      states with no prompt.  When ‘org-use-fast-todo-selection’ is set
      to ‘prefix’, use the fast selection interface.
 
 ‘S-<right>  /  S-<left>’
      Select the following/preceding TODO state, similar to cycling.
      Useful mostly if more than two TODO states are possible (SeeTODO
      extensions).  See also SeeConflicts, for a discussion of the
      interaction with ‘shift-selection-mode’.  See also the variable
      ‘org-treat-S-cursor-todo-selection-as-state-change’.
 ‘C-c / t     (org-show-todo-tree)’
      View TODO items in a _sparse tree_ (SeeSparse trees).  Folds
      the entire buffer, but shows all TODO items (with not-DONE state)
      and the headings hierarchy above them.  With a prefix argument (or
      by using ‘C-c / T’), search for a specific TODO.  You will be
      prompted for the keyword, and you can also give a list of keywords
      like ‘KWD1|KWD2|...’ to list entries that match any one of these
      keywords.  With a numeric prefix argument N, show the tree for the
      Nth keyword in the option ‘org-todo-keywords’.  With two prefix
      arguments, find all TODO states, both un-done and done.
 ‘C-c a t     (org-todo-list)’
      Show the global TODO list.  Collects the TODO items (with not-DONE
      states) from all agenda files (SeeAgenda Views) into a single
      buffer.  The new buffer will be in ‘agenda-mode’, which provides
      commands to examine and manipulate the TODO entries from the new
      buffer (SeeAgenda commands).  SeeGlobal TODO list, for
      more information.
 ‘S-M-<RET>     (org-insert-todo-heading)’
      Insert a new TODO entry below the current one.
 
 Changing a TODO state can also trigger tag changes.  See the docstring
 of the option ‘org-todo-state-tags-triggers’ for details.