CMS Binding Not Working Properly

So im having an issue linking a multi-image field that I have in one of my collection pages. The content is on a dynamic page, and ive already viewed the university video that outlines the need to connect it tp a lightbox element in order to bind the multi-image field but every time only the single image fields are the ones that populate, not even offering the option to bind the images in my multi-image field. Its very frustrating.

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