[Observium] Updating SNMP from v1 to v3

Hello,

We have about 80 devices that we are updating from SNMP v1 to v3. I can¹t seem to find a way to do this in bulk either from CLI or from web UI. I can update the devices one by one in the web ui, if I try from the CLI with the add_user.php script it complains about the device being known.

Can someone offer some insight on how I might accomplish this without changing each device individually in the UI?

Thanks

Tim