Funds Capture - Settlement Due Date and Maturity Date

We are using the Automatic Receipt Process to cater for SEPA payments in our European countries on R12.  If we run a weekly batch and want to send the bank everything now due and due in the next week.  We would expect that the file sent to the bank would be split by the different maturity dates. So it does not take all on the date of sending the file.  However they all seemed to be lumped in one payment block (PmtInf tag as using XML) with one requested collection date.

It seems that the settlement due date is what determines if should be multiple blocks with different collections dates.  from