There are three pieces of information are needed to add a new OATH credential:
- The type of token, either time-based (TOTP) or event based (HOTP).
- A description of the credential. This typically describes the website and account the credential is associated with, but it could be anything you want to disambiguate.
- A Base32-encoded shared secret, obtained from your service you want to use.
You enter this information for each website you want to use an OATH credential with, using that "add account" button. After you add each credential it should show up in the list.
If it is a TOTP credential, it will show the code. I'm not sure what the behavior of the desktop program is with respect to HOTP codes, but i imagine you would need to click on it and it then copies the code to your clipboard.
So are you seeing your credentials in the list after adding them?