How to restrict Master Demand Schedule (MDS) to load Sales Order related to Forecast Items?

Hello All,

In Load/Copy/Merge MDS program, when I select source type as Specific Forecast (which has only 1 item and 1 open Booked Sales Order) and Include Sales Order as All Sales Order then program should ideally consider only the open Sales Order related to the Forecasted Item for relief. But in actual the program considers all the Open Sales Orders for all Items. What should be done, so that MDS program should consider the Forecast and the Sales order only for that specific Item?

If I select no Sales Order, then the MDS shows only Forecast but not the open Sales Order. And If I selected SO from start date forward, it will show for all items