When adding a token, your browser will request camera access in order to scan the provided QR code. If your device does not have a camera or permission is denied, a manual entry form will automatically open.
After the scanner reads the QR code, a pre-filled entry form opens. I recommend entering the account username or email address in the Label field. For advanced configuration, click on More Options.
After submitting the form, your new token will appear in the main list.