Thank you for getting back to me.

In Desktop there was a panel on the right that showed the customer information, invoices, payments and anything past due.

I am looking for that with the online version. My customers can see their total balance due when they receive the invoice, but I cannot see it on my screen without going to my full customer list or running a report. 

and now with the new invoice layout you cannot even send batch invoices they all must be sent one at a time taking much longer. but that's a different topic lol.