Local Users and Groups

[goku21]

I've done a search on the forums, but no luck.

I'm working on an unattended install for work and what I want to do is create 2 users and add them to the admin group, but afterwards I want to add to network groups into the admin group also.

When I do this by hand, I have to login to the network and then add the group to the admin group. Is there a way to do this?