If you have an element reference, you can simply call .scrollIntoView() in script. ( see reference )
Or, if you know the next list item’s slug, you can pre-create an item with an ID, and then scroll to it using a standard #hashlink.
The bigger problem is predicting what the next item would be. You either have to be very strict on controlling your data, like a numbered column with 1, 2, 3… and no gaps, or you need a script that can adapt to the situation.
I’d recommend the latter approach in most cases.
Write a script that triggers on “next” button click, and