You have an option to convert Account in to Sub-account. You can convert any number of accounts into sub-accounts. Account can be considered as Primary and sub-account can be considered as Secondary.
Example: If HP ( Hewlett Packard) in U.S is the Account, then its branches in Germany, Spain, India, Canada, Japan, Singapore can be taken as Sub-Account.
To convert account to sub-account,
Log in to SupportCenter Plus application using your user name and password.
Click the Accounts tab in the header pane. This opens All Accounts page.
Select the primary Account from the drop down list. Say HP U.S Headquarters as shown below,

Select the Accounts to be converted to sub-accounts from the list view by enabling the check box.

Click Convert as Sub Account button. You can see all the accounts converted in to sub-accounts and listed in the Account details page as shown below,

To convert sub-account again to account,
Click Convert
as Account icon
in the sub account list in Account
details page as shown above. A dialog box pops up asking you confirmation
on the change process.
Click OK to proceed. You can see the changed sub-account to account in the Accounts list view.