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Connecting CMS Multi-Image Fields to

Hello!

What I have:
A CMS collections page containing a series of 3 images and a dropdown selection with two options.
Additionally, I have in my CMS Collection, with two multi-image fields both containing three images.

What I’m trying to accomplish:
Connecting the dropdown selection with the corresponding multi-image field being displayed.

Any help would be greatly appreciated. Many hours of googling to no avail.