todo-mode: Done Items

 
 5.3.3.3 Done Items
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 When the activity or thing that a todo item is about has been done, it
 is natural to eliminate the item from the todo list.  But instead of
 deleting it permanently, you may prefer to keep a record of your
 accomplishments by marking the item as done.  In Todo mode, this removes
 the done item from the todo list, so as not to clutter it up, and stores
 it elsewhere.  Such stored items form a record or diary of things done.
 The Todo package provides two such stores: the “done items” section of a
 Todo category, described here, and done item archives (SeeTodo
 Archive Mode).
 
 ‘d’
      This command (‘todo-item-done’) removes the todo item at point from
      the todo list, appends to the original header a header consisting
      of ‘todo-done-string’ (by default ‘DONE ’) and the current date,
      and if ‘todo-always-add-time-string’ is enabled, also the current
      time, and adds the resulting done item to the top of the done items
      section of the category.  Invoked with a prefix argument, it also
      prompts you to enter a comment, which is appended to the end of the
      done item, prefixed with ‘todo-comment-string’ (by default
      ‘COMMENT: ’).
 
    A category’s done items section is located below the last todo (i.e.,
 not done) item in the category.  By default this section is hidden from
 view.  There are two commands for viewing and hiding done items; since
 these are toggle commands, for convenience they also have a single key
 binding:
 
 ‘C v’
 ‘v’
      Make the done items section of the current category visible if it
      is hidden, or hide it if it is visible
      (‘todo-toggle-view-done-items’).  If you always want to see the
      done items section on entering a category, enable the option
      ‘todo-show-with-done’; you can still use ‘C v’ or ‘v’ to hide (and
      unhide) it.
 
 ‘F V’
 ‘V’
      Toggle the standard category display in the current todo file,
      i.e., display only the done items section of each category in the
      file, or if this is visible, hide it again and display only the
      todo items section (‘todo-toggle-view-done-only’).
 
    Since done items are meant to be a record of your finished todo
 items, you cannot apply to them the same kinds of editing operations
 available to unfinished todo items.  However, as explained in See
 Editing Item Headers and Text and repeated below for convenience, you
 can edit or delete a done item’s comment, or retroactively add a
 comment.  You can also relocate a done item, and you can revert its done
 status, making it an unfinished item again.
 
 ‘e c’
      Edit the current done item’s comment, if it has one; otherwise,
      prompt for and add a comment.
 
 ‘e d’
      Delete the current done item’s comment, if it has one.
 
 ‘m’
      Move the done item at point to the top of the done items section of
      another category (‘todo-move-item’).  This is useful in case, after
      having finished a todo item and relocated it to its category’s done
      items section, you create a category that is better suited to the
      content of the done item than its current category; in other words,
      you can retroactively recategorize the done item.
 
 ‘u’
      If you decide the done item at point is not done after all, this
      command “undoes” it, i.e., restores it to the todo list of its
      category, with the priority you choose for it (‘todo-item-undone’).
      If the done item has a comment, you are asked whether to delete it
      from the restored item.