Methods and apparatuses for operating data processing systems. One exemplary method of operating a data processing system which includes a display device includes receiving an input from a user, the input specifying an object to be represented in a user configurable portion of a window which is displayable on a display device, and displaying the window with the user configurable portion wherein the user configurable portion is present in an open interface window or a save interface window. Other methods are also described, and data processing systems are also described.