Explanation
DG4000 supports state copy or waveform copy between its two channels,
namely copy the state (parameters and output configuration) or arbitrary
waveform parameters of one channel to the other or swap the states of the two
channels.
Waveform copy is only available when both of the channels select arbitrary
waveform.
The channel copy function is not available in coupling mode.
Example
The command below copies the waveform of CH1 to CH2.
:SYSTem:CWCopy CH1,CH2