RIGOL DS1000B - Manual (Page 97)

Command Systems RIGOL
Programming Guide for DS1000B Series 2-85
Function:
The command selects the second option in current menu. If the subordinate
menu existing and its options are available, then these options could be selected
circularly when send repeatly the command.
18. :KEY:F3
Command Format:
:KEY:F3
Function:
The command selects the third option in current menu. If the subordinate menu
existing and its options are available, then these options could be selected
circularly when send repeatly the command.
19. :KEY:F4
Command Format:
:KEY:F4
Function:
The command selects the fourth option in current menu. If the subordinate
menu existing and its options are available, then these options could be selected
circularly when send repeatly the command.
20. :KEY:F5
Command Format:
:KEY:F5
Function:
The command selects the fifth option in current menu. If the subordinate menu
existing and its options are available, then these options could be selected
circularly when send repeatly the command.