Is it possible to enable a DFF in iProcurement at the line level to populate a DFF at the PO line.

We have a business request to add additional information on the requisition line and have that information transfer to the PO line during PO creation. We are on 12.2.6. I remember in 12.1.3, we could only do this at the distribution level. Has any thing changed in 12.2.6 or have any customer performed a similar process?