The Data User Item is a special-purpose item that does not create any content by itself. It is used to hold text that is used by scripts or other items. For example, the "MenuBar from Data Item" Menu Script uses text from a Data Item as the HTML for the MenuBar.
The Title property identifies the User Item in the User Items list. The Title has no other purpose for this User Item.
Enter text or HTML into the Text textbox. The use depends on which other item or feature uses this text.