change headers in message buffer

[Sebastian Luque <sluque@mun.ca>]

I'm now almost all set with Gnus, but there are a couple of things I can't
tweak with what I've read so far:

      1. How to choose which headers appear in the message composition buffer?
         I've looked at gnus-visible-headers and gnus-ignored-headers, and the
         first one is set correctly, causing the latter to be ignored. I don't
         want to see "X-Draft-From" or "References" when I'm writing a
         message.

      2. How to bring my address book from kmail to be used with Gnus. I
         looked a little bit into bbdb, and it looks like it'll take some
         pretty hard studying. Also, is it possible to generate groups of
         addresses to which one can refer instead of typing every single one
         of them? I'd be grateful to hear what others are using and how they
         got there.

Thanks in advance and for your help so far.

-- 
Best regards,
Sebastian