The buttons are displayed in two groups: the upper group contains the buttons with no LEDs, and the lower group the buttons with LEDs. It is not possible to assign functions from one group to buttons of the other group. As an exception, it is possible to assign �RUN� to the SEL/FINE button. Items shown in red (Function, Exit, Channel, and numeric keypad section) cannot be assigned. Copying the function of one button to another Click the left mouse button on the source item for the copy, and drag to the destination item. The indication of the allocated number changes, and the button name changes to violet. Restoring a button to its original allocation Click the left mouse button on the changed item. This changes back the button number and name to their original values. Restoring the buttons to their factory defaults � F3 (SET DEFAULT) Press F3 (SET DEFAULT). This restores the buttons to their factory defaults.