How does this affect my current site?
If you are satisfied with the current assignment of images in your Quick Shopping Cart storefront, you can keep these settings. Your images are stored in the One-Image section.
However, if you would like to increase the number of images associated with a certain product, you can assign additional images to that product using the Multi-Image option.
NOTE: The Multi-Image feature is only available in Deluxe and Premium accounts.
For additional information about the Quick Shopping Cart Media Gallery, see Using the Media Gallery.