Hi,
the SNMPv3-Credentials are stored int he same attribute like the SNMPv1 or v2c-credentials.
Have You tried to add a SNMPv3- device the same way like SNMPv1/2c-Devices could be added? I would say that this works the same way and the profiles are ignored in this case.
Take a SNMPv3-Device, open the attributeEditor and You have to search for the Communty-Attribute.
Take that Attribute to create new Devices.
That should work.
Best Regards
Erich