OPTION USBKEYBOARD nn[,noLED]

Set the language type for the attached USB keyboard. ‘nn is a two
character code defining the keyboard layout. The choices are US for
the standard keyboard layout in the USA, Australia and New Zealand
and UK for the United Kingdom, DE for Germany, FR for France and
ES for Spain.
The optional noLED parameter can be set to 1 to block sending the
command to the keyboard that lights the LEDs relating to Caps Lock
etc. This may be needed on some keyboards which do not process this
command properly and may lock up. It defaults to 0 if not specified
(i.e. the LED commands are sent).
This command can only be run from the command line and will cause a
reboot of the CMM2.
This setting is remembered even after a firmware upgrade.