I would like to stack the collection items on each other. Then, you should be able to swipe multiple images within the collection item. So, slide 1 is image 1, slide 2 image 2 and so on. If you have uploaded 13 images in one item, and 8 in another, the number of slides should vary.
Sort of like this: https://www.atelieram.com/projects/mapleton
Thanks for helping!