todo-item-done
todo-item-done is an interactive compiled Lisp function in `todo-mode.el
'.
(todo-item-done &optional ARG)
Tag a todo item in this category as done and relocate it.
With prefix argument ARG prompt for a comment and append it to
the done item; this is only possible if there are no marked
items. If there are marked items, tag all of these with
`todo-done-string' plus the current date and, if
`todo-always-add-time-string' is non-nil, the current time;
otherwise, just tag the item at point. Items tagged as done are
relocated to the category's (by default hidden) done section. If
done items are visible on invoking this command, they remain
visible.