For simple presentations (mainly text):
switch off the top gotobar, make a simple bottom gotobar with just "PrevSlide?", "NextSlide?", "Top" (=goto Mainpage), and maybe "Edit".
Write a keyword (maybe "$WIKIPOINT") at the start of such a page to mark it as a praesentation-page.
Put these presentation-pages as subpages of a main presentation page, so that the sequence for prev/next is defined at only one place.
Another use for this: slideshow / fotoalbum.
--HaJoGurt