GRN wise delivery cost in MIRO

Hi

I have created a Purchase order for a raw material along with freight charges (this is paid to different Vendor) which is maintained in the PO Level. I have done multiple GRN's for the same Purchase Order.

When I am doing the invoice verification for the same PO. I was trying to book the Planned delivery cost for this PO. I am able to see only single line item but where as i am unable to see it based on GRN. The GRN number is also not appearing in the reference field

Requirement is: Based on number of GRN's the Planned delivery cost should be seen in MIRO. but where as i can see only one line. System is calculating on Po Level.

If i am booking for goods and service i am able to see multiple line items

pls help