Extras are add-on items (drinks, snacks, sides) customers can add to an order, either from a dedicated Extras page or as a cross-sell during checkout. The Order: Extras tab holds Extras: Title (default Extras), Description, Subtitle, Module Image, Header Image, Youtube - How to Video, Show on the Cart Preview Page, Add a Popup on the Cart Preview Page, Show Popup on Every Load, Display by category and Show "See what days we deliver to your area" button. The extras themselves are created under the Extras admin page.