Idrac 8 and 9 -SNMP Agent - Enable SNMPv3 only using RACADM

Hi as the title says, i just need to set the agent to SNMPv3 under the services page.
I need to do this Via RACADM as i will be sending commands to multiple idracs.

In the below image you can see its set to all:
i need just SNMPv3

Thanks in advance