The image shows an Edit dialog with a Choose a value option and a Type a value or expression option. The Choose a value option provides two dropdown lists. Clicking an item in the first list populates the second list automatically. In this image, Page Parameter is selected in the first list and the second list is empty, probably because the current page has no page parameters. A text box is available below the Type a value or expression option for users to enter an EL value. Test, OK, and Cancel buttons are displayed at the lower right corner of the dialog.