The displays can be panned or slewed on the screen in two ways - using the mouse pointer or by using the dial box knobs. When one is editing, the mouse functions are not available for slewing, hence one must use the dial box knobs to slew the display.
To slew the display using the control knobs, one uses the knobs labeled ``slew x'' or ``slew y''. The null positions on these knobs is in the center or straight up. If the ``slew x'' knob is turned clockwise of center, the display will move to the right. If it turned counterclockwise, the display will move to the left. For the ``slew y'' central knob, clockwise of the center moves the display up and counterclockwise moves the display down. The further these knobs are turned from center, the faster the display moves.