Pagination adds to scroll view

If I place pagination buttons at the bottom of the scroll view and the user taps it to go forward, Is there a way I can add the items to the the ones that are already in the scroll view (add them below) so that they can just tap the button then keep scrolling? If this isn’t possible how do I take the users to the top of the scroll view when other items have been loaded?(the next page of items)

Does anyone have a guide to pagination in the front end(again I have the backend working). Do I have to make different pages in appgyver for each page of items?