Show: Unpaid (Show balance of Unpaid)

Show: Unpaid (Show balance of Unpaid)

When I go to 
money in > invoices > show unpaid 
I want to see the __balance__ of the unpaid invoices 

I know I can go to reports>  Invoice Aging Summary
and see the balance there 
but I'd still really like to see the balance of unpaid as a total on
https://books.zoho.com/view/ZB_Main/ZB_Invoice