Hi, Bob,
do I understand you right, you just want to cycle through a bunch of pictures and pause them? No tranistions between pictures?
Then it is easy, just use an Animation object and either control that by another object or enable the option "Click to Play/Pause".
If you need transitions between the pictures, then I'd work with a button (on master page) and make that stop a script, which advances pages.
Best
Matthias