Having the ability to have multiple links within in a single image is a great idea but currently we do not have any sort of overlay to achieve multiple link functionality. To accomplish your goal, I do suggest cutting your image into separate smaller photos so that each section can be clickable to a different link.
I put an example into your account to help illustrate. Check out the campaign named, "Example of Multiple Links to Appear as One Image". There are three images each with their own link but gives the appearance of one large image. I hope this helps you move forward on your quest to have multiple links in what looks like a single image.
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