Google Message Security for Google Apps Administration Guide - Manual (Page 45)

Organization Management 45
The name in the gray bar changes, indicating that you’re now looking at your
new org’s settings, which were copied from the parent. You can change them
now, to apply for this org’s users, only (see “Manage Organization Settings”
on page 40).
Optionally, you can assign privileges for one or more administrators to
manage the new org. Administrators of the parent org have privileges to
manage it, too. See “ Administrators” on page 87.
Changes made later to the parent org will not be copied to this one, unless
you specifically choose for them to (see a particular feature’s topic for details
on propagating changes to existing sub-orgs).
Creating a sub-org of the A_Acme Support org, named La Honda.
On the Organizations page, La Honda is displayed as a sub-org of A_Acme
Support.