(Customers not paying via credit card) Allow the recording of a lump sum payment to be allocated to multiple invoices. ie a client owes and pays $1,000 for payment of 2 invoices. Allow the $1000 payment to be allocated to the two invoices.

Current workflow of having to apply the $1000 as customer credit balance and then allocating to the 2 invoices separately. This also makes the customer statement balance messy.

The ability while in a customers account to pay multiple invoices with one check number, one transaction, would clean up accounts receivable and make totaling more accurate and less confusing. This must also sync with QuickBooks properly.