Limiting "outside hotspot" area to a specific region of slide
Is there a way to limit area in a slide is that is considered to be "outside hotspot" to a specific part of the slide?
For example, I have a picture of a USA Map in a slide, with a hotspot drawn around one of the states in the map representing the "correct" click. If the user clicks anywhere else on the slide it brings up the "incorrect layer"---as it normally should,---EXCEPT it also considers clicking on any of my custom navigation buttons that are on the Master Slide (Prev/Next, Exit) to be "outside hotspot" and will not allow those buttons actions to take priority.
I noticed it DOES let the default navigation buttons/areas above and below the slide be clicked without activating the "outside hotspot" trigger---so I'd to know how to make that happen for any custom button or object placed on the slide itself.
If I could limit the area considered to be "outside hotbox" to anything within the Map Picture other than the hotspot, that would solve it, since my custom buttons are all to the right or below the map picture.
My goal is to be able to make any custom button or object trigger have priority over the "outside hotspot" trigger.
Thanks for any suggestions.