BAS report to adjust for monthly PAYGW and quarterly BAS Merged

I pay my BAS quarterly but PAYGW monthly. When preparing the BAS report the PAYGW for the quarter is calculated. This then has to be manually adjusted when lodging report. Can easily forget to do this and overpay. Would be great if there was a option to choose PAYGW info for the quarter or the last month of the quarter as the first two months have already been lodged and paid.