Passkeys really not visible on the Nitrokey App?

Hello,

I have just verified that I can create a passkey for https://webauthn.io/ (i.e., both buttons - “register” and “authenticate” - work). After finishing the little experiment, I wanted to clean up, i.e., delete the passkey from my Nitrokey 3 NFC USB-A. Unfortunately, the passkey does not appear on the list (not even as “hidden password” in the Nitrokey App.

I found in the FAQ “Why does the Nitrokey Passkey not show up in Nitrokey App? - the answer is **“**Der Nitrokey Passkey wird von der Nitrokey App 1 und 2 nicht unterstützt.”.

I am using the App version 2.6.0 - How can I delete obsolete passkeys to save space on the Nitrokey?

Thanks in advance

Short: Chrome / Chromium web browser offers after a little “click journey” what you want, list and delete your passkeys.
Long: As I you want to get your “feet wet and your hands dirty” and learn something about this security mumble - then you may start with “nitropy”, it has rough edges but gives you most control over your device.

If Nitropy is the way to go, then it’s fine with me.

Thanks for the prompt answer