When you're at the main key management window in kgpg, is there a way to add a comment for an entry?

I have some keys where the name is something like "user" and the email address is "user@email.com". Being able to have a comments column would really be nice.

kgpg is just a frontend to gpg, and no, there is no option to add comments to other peoples keys, you can add a comment to your own key when you create it.