[DISPLAY]: show the “DISPLAY” menu.
[UTILITY]: display “AUXILIARY FUNCTION” menu.
[DEFAULT SETUP]: recall the default factory setup.
[HELP]: enter the on-line help system.
[AUTO]: automatically set the control state of the oscilloscope so as to display
suitable waveform.
[RUN/STOP]: continuously acquire waveform or stop acquisition
[SINGLE]: Acquire a single trigger, finish acquisition and then stop.