[Observium] device migration from SNMPv2 to SNMPv3

Hi,

I have a one question regarding migration devices in Observium from SNMPv2 to SNMPv3. I have in the Observium in this moment around 300 devices and want to use SNMPv3 instead of current SNMPv2c.

Is here any procedure how I can do bulk change in Observium instead of removing and adding devices or do it manually?

Thanks

Jan