How to nest a business group
A business group can be arranged so the data sources available to one business group can include those from other business groups. This is accomplished by nesting one or more business groups together.
To nest one business group into another:
1. In the web interface, click Configuration > Data.
2. Select one by clicking a table row.
The business group is now editable.
3. In the Edit pane, click the Included Business Groups tab.
4. Move a business group from Available to Included Groups using a drag-and-drop operation.
You can repeat the drag-and-drop operation to nest more business groups into this business group.
 
Your business group is now including the business groups that you specified. Data sources from those nested business groups can be brought in.