Rigol DS1204B Programming Manual page 17

Function:
The command sets the trigger mode as Single trigger.
5. :KEY:CH1
Command Format:
:KEY:CH1
Function:
The command sets channel 1 and its menu on or off.
6. :KEY:CH2
Command Format:
:KEY:CH2
Function:
The command sets channel 2 and its menu on or off.
7. :KEY:CH3
Command Format：
:KEY:CH3
Function:
The command sets channel 3 and its menu on or off.
8. :KEY:CH4
Command Format：
:KEY:CH4
Function:
The command sets channel 4 and its menu on or off.
9. :KEY:MATH
Command Format：
:KEY:MATH
Programming Guide for DS1000B Series
RIGOL
2-9