PPV at subinventory

Due to limitation around drop ship (to create expense POs), we are creating zero value PO line type Goods. As a result, inventory transactions for PO receipt are showing PPV. We would like this PPV specific for subinventory creating those transactions. Curently its going to PPV at org level. Since these are non-genuine variances, we want them tied to PPV at subinventory level. Is there any set up which can give this functionaltiy?

Thank you

Yogesh