Linking Co-Manufacturing Purchase Orders and Production BOMs

Hello!

I have multiple clients that either are or will be using the co-man function in Core. One consistent ask is the ability to easily provide the bill of materials to vendors when sending the co-man PO. I can see this happening a few ways:

Note that I am referring to the co0man situation where a PO is created and this triggers the creation of the production order.

1) Ideally, there would be an expanded pick list in the purchasing template module that would allow users to attached an expanded bill of materials directly to the PO from the purchasing module similar to what is available from the production order. 

2) If the expanded pick lists need to be printed from the production order, can the template pull in the PO number of the related purchase order the same way that it will pull in a related sales order number if a production order is triggered from the SO?

3) If #2 is not an option, can the Purchase Order Attribute fields be available to pull to an Production Orders and be available to add to the expanded pick list template?

Thank you!!