Fairly simple, here is a quickie showing how its done, you can modify it to fit your needs... This is using SWQL which means you'll need the Orion SDK to work with it, although the SWQL itself can be used in a "Custom Query" resource on any page, or within a report.
SELECT N.IPAddress, N.Caption as Device, N.SNMPVersion as Version, N.Community, N.RWCommunity, N.SNMPv3Credentials.UserName,
N.SNMPv3Credentials.PrivacyMethod, N.SNMPv3Credentials.AuthenticationMethod, N.SNMPv3Credentials.RWPrivacyMethod,
FROM Orion.Nodes N
WHERE (N.SNMPVersion = 3)
If you want to have this on-demand on any given webpage, just go to "Customize Page", add a resource of type "Custom Query" to the column you want, paste in this SWQL and you're ready to go.
Excellent, this works perfectly for me.