I have a presentation that uses some slides towards the end almost as
"pop-ups".  However, when these slides are shown, the user can get VERY lost
if they start using normal keyboard navigation (space, arrow key, etc.) or
just a normal click (to advance).  

The slides have an action button on them that the user should user for
navigation.

Therefore, I would like to do one of the following (in the order of
acceptable to outstanding):

1) Disable all keystrokes on only these slides
2) Disable all keystrokes on only these slides (except for Escape)
3) Make all keystrokes do the same action as the action button

Thanks for any and all help!