Help with domains

[a.ambrosio]

There is a main company wich will be the main of the other subdomains.

company -globlal administrator
-company1 -administrator -users@losAngeles.com
-company2 -administrator -users@hongKong.com
-company3 -administrator - users@paris.com

I want an only zimbra installation, and for that zimbra installation create different domains. This different domains will referr to the subcompanys, I want when I access such as an administrator only to see the users for the domain I belong.How can I do this ?

Thanks

[bdial]

you can make someone a 'domain administrator' look in the account properties as a global admin