Displaying on a display screen at least a portion of each of a set of windows initially completely hidden within said stack. Defining each hidden window in the stack of windows and mapping for each hidden window the collective perimeter of all of the windows in the stack above the hidden window. A user is enabled to input a display hidden windows command and, responsive to the "display hidden windows" command, each hidden window in an orthogonal direction until a least a portion of the moved hidden window extends beyond the collective perimeter of the windows above said moved window. For ease of use, the display hidden windows command may be an item, e.g. icon on the display screen. If the hidden window has a border region, as described above, identifying the window, then the means for moving the window preferably moves the window in an orthogonal direction whereby this identifying border extends beyond said collective perimeter on said display screen.