Copy Info Template DFF to PO Line or Req Line?

Summary:

It is easy to copy Requsition Line DFF to a PO Line.

Is it possible to copy an Information Template DFF to either Requisition Line (so it may copy to PO Line) or to PO Line DFF?

The Information Template is helpful to collect requisition attributes that vary and don't apply to all requisitions, using Smart Forms. However some of that information must go to the PO as well, hence the goal to copy it upwards.

There doesn't appear to be a way to enable Requisition Line DFF's to appear on a Smart Form. Another alternative would be a way to use Expression Language to control requisition line dff visibility.