[Samba] What is the recommend method to give users local admin access?

[Aniruddha]

What is the recommend method with a samba pdc to give users local
administrator access to their workstations? In Samba4 / Active Directory I
can use a group policy. For Samba I can add 'Domain Users' to the local
administrator group following these instructions.
http://www.samba.org/samba/docs/man/Samba3-HOWTO/groupmapping.html#id2598630Is
there a better way to do this?