Expanding on Adam’s correct statements:
Aside from media (audio/video) there is not much to pause on a page besides animations/transitions. I don’t believe it’s possible to pause the stock transitions, but you’d rarely need to. If you are using timers to make things happen, mention that and we’ll come up with solution (if possible).
To refresh a page without leaving, you can just navigate to a blank page and have that page immediately (onShow) GoTo Last Visited Page. Put the blank page after the last navigable page of your course so it doesn’t come up in sequence. I made mine consist of a “loading” graphic, so the user sees a load screen for a fraction of a second, then the original page reloads.