I have been working on a presentation. I have about 15-20 pictures that
I want to have it loop through continuously until the presentation
starts. Then, I want to manually advance the other slides once the
session actually starts.

I've heard from multiple people that this is possible, but none of them
have been able to tell me how to do it. Does anyone know how to make it


Don't go around saying the world owes you a living. The world owes you
nothing. It was here first. ~Mark Twain