Supplies from restricted subinventory in ASCP

Hi

This is on a functionality check..

Canwe restrict plan to consider supplies only from specific subinventory for set of finish goods.

for e.g. Need to restrict FG-A and FG-B to consider the component stock on hand from SUBINV -A. it should not use the supplies from SUBINV-B.

Since planning is at org level and if there is a excess in SUBINV-B, the pegging will automatically happen. Is there a functionality or any way to restrict it to consider only SUBINV-A for certain finish goods.  

Thanks

Viswa