Partial confirmation in a Make To Order scenario (MTO)?

Hi

We are setting up a Make-to-order scenario. We dont have any issues in creating the order and generating the Process order automatically. But the thing is the schedule lines are not redetermined based on the Process order confirmation.

For example, the ordered quantity is 10 and process order is also created for 10. However the process order is partially confirmed for 5 quanitities and we excpect three schedule lines.

Original schedule lines:

Del.date     Order Quan     Confirm Qty     Comm Qty

15/08/12     10                         0                    0

25/08/12     0                           0                    10

Process order is partially confirmed for 5 qty on 22/08/12 and i expect three schedule lines like below:

Del.date     Order qty     Confirm Qty     Comm Qty

15/08/12     10                    0                    0

22/08/12     0                      5                    0

25/08/12     0                      0                    5

But scheduling is not happening as above and the original schedule remains as it is. I have tried different settings in ATP Scope of check but it doesnt work.

I am aware that MTO orders are not considered for backorder rescheduling. But its there a way to re-schedule or re-run availability based on the Process order confirmation?