Insert the code block generated by create-parent-experiment-check-code.py which now includes teh solution for #508 with the split in case the activity_id in the CMIP6_CV.json contains more than one MIP.
Insert the code block generated by create-parent-experiment-check-code.py which now includes teh solution for #508 with the split in case the activity_id in the CMIP6_CV.json contains more than one MIP.

goord/ece2cmor3,goord/ece2cmor3