Generating Passkey on Second Account

My wife and I have a 1Password family plan and we both have separate logins into our joint account at Capital One. I created a Passkey for my login at Capital One. When she tries to login, a dialog box appears saying "Sign in with a passkey" that is linked to my account. When I close that box, another dialog box appears asking how I would like to sign in: iPhone photo of a QR code or via a Security Key (which I interpreted optional ways to open my account). When I cancel that option, then I can click on the "Sign in using a Passkey" button (which is how I generated my passkey), but when I do that the first dialog box reappears offering to sign in with my passkey. 

I can sign in using her user name and password, but once in the account, I don't see a option to generate a passkey. As I mentioned, when I generated my passkey, I clicked on the "Sign in using a Passkey" button to generate the passkey. 

How do I generate her passkey?

Thank you.