Need Help... Regarding accounts receivables opening balance adjustment and previous payments.

Need Help... Regarding accounts receivables opening balance adjustment and previous payments.

Hey!
I am the new user of Zoho books. recently i transfer my accounts on zoho. I have recorded all my accounts receivables. However there is no option of opening balances directly at adding new customers. However I have recorded them by manual entries. But problem is that when ever i received any previous payment from my customer there is no option to adjust it in previous payments. It shows in customer credits. Kindly give me any solution that i can see net balances in receivables. Thanks