Link on product page to display certain product image



I'm currently looking at adding AR to the Prestige Theme product pages.

As a way to make this more discoverable/visible to users (especially on mobile) I'm hoping to add a link under the cart button that would force this media to display as per the mockup:

Screen Shot 2020-08-14 at 11.59.12 am.png















Is there an easy way to create this link so it displayed this image/file (that would be saved to the product) based on say the location of the image (perhaps last) or the alt tag content (say containing "AR")?

I've looked through the forums without any luck.

Thanks so much