Customer Portal and Pivot Charts

Customer Portal and Pivot Charts

(Note: I am new to Zoho Creator) 
I am creating an application using the "Customer Portal".  The data shown to the customer is limited to their own data.  This is working for all Reports except when I try to make a Pivot Chart.  On the Pivot Chart I am only able to add a Filter "ZRCriteria_Added_User".  When I do this is shows all the Customers data for everyone (and the dropdown list of all users).  Is there a way that the data shown is automatically limited to the logged in customer?