org-add-planning-info
org-add-planning-info is an interactive compiled Lisp function in `org.el
'.
(org-add-planning-info WHAT &optional TIME &rest REMOVE)
Insert new timestamp with keyword in the line directly after the headline.
WHAT indicates what kind of time stamp to add. TIME indicates the time to use.
If non is given, the user is prompted for a date.
REMOVE indicates what kind of entries to remove. An old WHAT entry will also
be removed.