Maintenance Worksheet offset

We use the Maintenance Worksheet to offset a payment placed On Account (CR) with a newly issued invoice (DR).  This works fine to clear the customer's account.  But 4 accounting entries are generated that cancel each other out.  These rows have the correct accounts & amounts, but we only want  2 accounting rows: 1 entry to DR the On Account row's accounting and 1 entry to CR the invoice row's accounting.  Instead we get an extra set of rows to CR the On Account row's accounting and 1 entry to DR the invoice row's accounting.  Our present workaround is to