Abstract: In an interactive terminal-host data processing system display panel processing is performed in a sequence of steps. A horst data base stores a display panel library and data. The terminal displays a list of panel layouts for panels stored in the library. One layout is selected from the llist and displayed on the selected panel layout. The selected panel layout is modified at the terminal when the panel is displayed. The modified panel layout is stored in the panel library. The stored panels, including the modified panel, are utilized in the interactive data communication between the terminal and the host data base.