If this is for a tutorial that you are creating in PowerPoint, the best thing
would be to organize it in chapters or sections and create a menu on your first
slide that allows selecting a section to return to. People frequently only
spend a segment of time in a tutorial and want to quit, go to a meeting, quit
for the day, etc. A menu allows them to jump to the section they want.
--
Sonia Coleman
Microsoft PowerPoint MVP Team
Autorun Software, Templates and Tutorials
(Never test the depth of the water with both feet.)