Show reference number when allocating payments

Can you please add the Reference Number in the Allocation area of paying Bills .

At the moment only the "Bill Number" is shown which makes it difficult to identify which Bill you are paying for on any Supplier when there are multiple bills which have been paid in a batch. As the Bill number is automatically generated by IPA Books+ it does not correlate with anything on the original invoice making it difficult to know which amounts have been paid, especially when there are several invoices with the same total and same date.