How to limit the number of visible rows in a repeater displayed on a web page

Question:
I have a repeater set up where I add a weekly PDF so that users can open/download. I only want 4 of them at a time to display on the web page. So, as they grow in number, and the display lists them in most recent date order, I want the the visible section to “hide” all PDF lines after four, only showing the most recent four (even though the CMS collection may have 30 or so in it.

Product:
WIX Editor

What have you already tried:
I thought I could create some sort of Mask with an Element, but every time I add a new item to the CMS Collection, the Repeater on the Web Page just expands the list and pushes the bottom footer farther and farther down, making the page longer.

it the dataset settings you can adjust the amount of items to load and then sort it to your requirements