Waveform - HP 1652B Programming Reference Manual

selector
The WAVeform selector is used as part of a compound command header
to access the settings found in oscilloscope's Waveform menu. It always
follows the SCOPe selector because it selects a branch below the SCOPe
level in the command tree.
Command Syntax:
OUTPUT XXX; ":SCOPE:WAVEFORM:"
Example:
HP 16528/16.538