The Full Width Slideshow is a way of adding images and creating a slideshow that will appear on your webstore, you can add effects so you can choose how the images appear, the speed, which images appear etc. 


Prima Go > Contents > Banners > Full Width Slideshow


Choose the Effect, Slices, Box Columns, Box Rows, Speed & Pause then make sure the Show on webstore box is ticked, then click choose file and upload the images that you would like to show. then click the order you would like them to show and location then hit Save. Refresh your Webpage and the slideshow will show.