[Fedora-spins] Adding default user to a group

[Bruno Wolff III]

On Mon, Jul 16, 2012 at 11:02:04 +0200,
   Jørn Lomax <northlomax at gmail.com> wrote:
>Is there a way to add the first created user to a group. I have been 
>able to add the liveuser to the audio and jackuser groups (which 
>makes sense for an audio spin), but I have not found a way of making 
>the user created after install (on firstboot) to said groups. Is this 
>at all possible, and if so, are there any hint you can give me?

You can probably do this using usermod in the post section.