Part Drawing attachments to RFQ/PO

Anyone have any ideas for "automtically" attaching part drawings to
RFQs and POs? We have drawings attached to parts but when we add a part
to a line item in an RFQ or PO we cannot attach that same drawing. (In
an RFQ you can then attach documents but this is a repeat of the
process for attaching the drawing to the part...a repeat of work and an
opportunity for mistakes).