Outline-oriented operations in OOo can be improved in a number of ways:

 * Separate the objects-view and the headings-view into separate
   GUI panes, to pave the way for more sophisticated outlining.

 * Use a proper tree control to display headings in the Navigator
    --allow selection of multiple headings to promote/demote
    --allow collapse/expand of individual headings, as
      well as global collapse/expand 

 * Do outlining operations in a variation on the main window, and
   allow text to be displayed or hidden when the heading is visible.

 * If other styles are defined with numbers that correspond to 
   the heading levels (e.g. Text body 1, Text body 2, etc.) then
   apply Navigator promote/demote operations to those paragraph styles,
   as well as to headings.

 * When dragging headings in the template, take all subheadings
   with the heading instead of leaving them behind. (If moving a
   chapter heading in a navigator view where I can't even see the
   text that's under it, what are the odds that I want to move
   the whole chapter? As opposed to placing the chapter heading in 
   front of some text I can't even see?)

 * Allow selection and copying of multiple entries in the Navigator
   view (without subtext, or optionally with).

 * Add an option to show level numbers in the Navigator, even if
   outline numbering is not turned on for the headings.