Joining Collection Lists with Lightbox Images

Hi!

I have to collection lists that are specific to a CMS item. I want to display them both side by side but I am having trouble joining them. In some items I hace a combination of 3 images for the first collection, 2 for the second, in other, 2 and 4, etc. It varies a lot.

Is there a way to make these collections act like one (without having to join the contents in a single field) and even link the lightbox elements as I currently have them with the main image and the images from the first collection?

Thanks for any tips!

(I’ll have to delete the read-only for confidentiality reasons in a couple of weeks :frowning: ):


Here is my public share link: LINK
(how to access public share link)