• Realtime: Title is the big heading at the top of the customer's /realtime page (default "Real Time Ordering") and is also used in the how-to video button label.
• Realtime: Header Image is the banner image shown in that page header.
• Realtime: Description / Realtime: Subtitle are the texts under the module title where the site lists your ordering options (the module tile). The module's built-in description is "Provide your customers the ability to order online" when nothing is set.
• Realtime: Module Image is the picture on that module tile.

All of these are per-business settings (not editable per kitchen).