Pardon my noob issue, but, with Knoppix, I've been thrust into being an account manager now...

I want to duplicate a current user into another name.

Issue #1 - Can I "copy" or duplicate a user I have setup as a template - lets say "knoppix" for an example - Can I copy that account and user as a different name? If so, can they share the same /home or do they need a different home directory??? Will all the access and permissions copy as well?

Issue #2 - Can a directory be created that is shared across all users, write, read, and exec, that DOESN'T exist in someones home directory? Or can this only be done in ones home area?

Please explain resolution in simp terms - I went into this role kicking and scratching...
Thanks for any assistance,
Cuddles
[ps] Knoppix 3.3 v2.4.22-xfs HD Install, non-dualboot, 40gig HD.