Currently, if you add a manual payment to a job's financials, there is no way to apply that payment to a specific split payment on an invoice. The payment applies generally to the invoice and will delete or close out the first split payments until the invoice has been paid in full, but the payment does not show which split it applied to. Only shows the date the payment was applied. Being able to see exactly which payment applied to what split would look a lot cleaner and less confusing for the customer.