Remove GSM from first up default connection

For EC25, I need to move GSM connection to not be the default connection. It requires more current than our hardware is capable of. I’m not sure if I need to remove it entirely or move it back to least preferred connections. How do I do this?

You can lock it to 3G/UMTS with AT+QCFG="nwscanmode",2

Or to 4G/LTE with AT+QCFG="nwscanmode",3