I have OpenPGP key pairs for two of my email addresses. When I created them, I did not know that it was possible to just add another user id to the first key pair. Then I found out it is possible from the GnuPG documentation.
Is there a way to somehow merge my second key pair into a user id on my first one? I'm not sure if that even really makes sense. I was just wondering if that would be an option to only have one key pair in the future.