I just installed R2Mail2 and it seems to work fine so far, but I didn't understand the key generation procedure at the beginning.

What is this key for? Is this already a new GPG key-pair I can use? or is it just some inrernal stuff i don't have to care about?

How can I generate a GPG inside R2Mail2? Or do I need APG to create my keys?

I just installed R2Mail2 and it seems to work fine so far, but I didn't understand the key generation procedure at the beginning.

What is this key for? Is this already a new GPG key-pair I can use? or is it just some internal stuff I don't have to care about?

How can I generate a GPG keypair inside R2Mail2? Or do I need APG to create my keys?