Customizing the slideshows in the Showtime theme
From Spiffy Stores Knowledge Base
The Showtime theme has built-in slideshows that allow you to select which product collection you want your slideshow to display on the home page.
The instructions below allow you to change the slideshows, so that they display a set of images, text, and links that YOU select. They also show you how to edit your theme.setting file, so that you can easily change your slideshow in the Theme Editor section of your toolbox.