Squarespace 7 - Autoplaying Slideshow

How do I create an autoplaying slideshow?

I am using Squarespace 7 with the Mohave template. I have linked a page with a gallery to the Summary block and set the the items per row to 1 but I cant see any controls to make the slideshow autoplay.

Ideas please?

Try adding to Settings > Developer Tools > Code Injection > Footer to make summary autoscroll

<script>
window.onload = function() {
  var nextArrow = document.querySelector(".summary-carousel-pager-next");
  
  function clickNext() {
    nextArrow.click();
  }
 
  setInterval(clickNext, 5000);
};
</script>