The COP command inside the Edit window’s Command Mode looks like this:
COP1 =COP/DATA,SIZE=0
REF,,
The COP command must precede any scan referring to it in the measurement routine.
For example, REF,SCN2 shown below points to the SCN2 scan and uses its data:
COP2 =COP/DATA,SIZE=0
REF,SCN2,,
You can have more than one scan refer to a COP command.
Be aware that if you cut a COP command and paste it again, the resultant command gets pasted without the data points. If you need to move your COP command to a different location in the Edit window, you need to re-create the COP command at the desired location and delete the earlier one.