CMS Dynamic Slider with one collection

Hi guys !
I’m trying to integrate a CMS dynamic slider on my website, watched a few tutos but I have to admit that I’m stuck in the process. It looked simple at first but it isn’t actually :-/
Does anyone here knows how to do this?
I would like to have one slider without having to duplicate the CMS collection to each slide, I believe it should be possible but I just can’t figure out how. Also, in the ideal scenario, I would love to have just a 1/3 of the upcoming slide visible like the exemple on this picture.

Any help would be highly appreciated :grinning: