You can add a sublevel in the existing organization to define structure in details.
On the SPE home page, select Administration > Organization.
In the list view section of the Organization module, select a level to add a sublevel.
Click Add icon to create a sublevel.
Specify a Code for your sublevel organization.
Specify a Name for your sublevel organization.
Optionally, you can specify the Country, State, and City of the sublevel organization.
Click Save.
Note: The administrator can set the Organization Maximum Depth parameter during the initial setup, determining the maximum number of levels that can be created.