The user-defined system heading is always "Replace with screen heading desired" unless you change it. The user-defined system heading is not unique to a particular screen or job — the same heading will be displayed on each screen, regardless of the screen ID or job ID. This feature is provided so that you may customize the CODE-1 Plus screen to contain your company's name or a slogan across the top. You can enter "CN" from the Main Menu to change the User-Defined Screen Heading.