Assign Parent Campaign to Child Campaign

Assign Parent Campaign to Child Campaign

I've been using Zoho a short time and still have not learned how to assign a parent campaign to multiple child campaigns. I need to do this for reporting purposes. i.e.

Parent Campaign:      ABC Wholesale
Child Campaign :      1. ABC West
                              2. ABC East
                              3. ABC North
                              4. ABC South

All child campaigns run independently and the parent campaign only comes into play when I run reports.

Any and all ideas or opinions are welcomed.