. OPERATION DETAILED CONTROLS AND GAUGES OPERATION DETAILED CONTROLS AND GAUGES (a) on the 3 - 40 On the Brea ker Select Me nu screen, i t is possible to carry out the following op erations with s witches F3 - F6 F3: Moves to next item (1 l F4: Moves to previous item (1 line up) F5: Returns to previous sc F6: Switches to setting scr een for selecte d item. Changing breaker setting sele 1. Select b reake r setting menu sc reen, then pre ss switch F breaker setting