About the Two Factor Authentication category

Discussion and support for using OnlyKey for 2FA. See Security Key (FIDO2 / U2F), OAUTH TOTP, Yubico OTP, and Challenge-Response.

Can you backup your ** 2 Factor ** stuff somehow?
I know the typed passwords can be backed up

Can it export the public private keys?
Possible to make 2 keys have same public and private key? Then i can add 2 factor accounts to one device only. If its lost i could then use the second device (which i havent added accounts to) to unlock the accounts on the first (lost) deviceā€¦