X-ray Soundscape Interactive - Help with triggers

Greetings All,

I am officially trigger-happy, triggered, in need of help with triggers.

1. If you could take the time to visit my interactive x-ray soundscape in review and let me know what trigger I need to put into place to keep the bottom red button when I move the cursor off of the top red button - i would be ETERNALLY - grateful.
2. Also, what is the best way to clone this set of triggers in its entirety so that I can place multiple audio soundscapes onto this layer. For instance, the current audio set-up is completely experimental. I would like to have at least two more soundscapes that are more structured.
3. All my buttons are organic shapes - but their highlight boxes are actually geometric shapes that seem to get in the way of each other at times. For instance, the reason I linked the top and bottom red button is because the bottom red button simply lost functionality once the button for the tibia bone was engaged.

File is attached. I appreciate your time!

Thanks, Ingrid