Multiple Production Order with MTO

Dear All,

I have a requirement in NAV 2009R2 environment. I set up the Manufacturing Policy = MTO and Reordering Policy = Order. Now when I run the Planning Worksheet, I need to get multiple production orders one each for the sub assemblies with link between every production order. But, I get a single production order with multiple lines with indentation.

I believe there need to be code changed to achieve this requirement. Can anybody let me know in which object I need to do the change and what kind of change?

Regards,

Mohan J