Item line in Delivery merge.

Hi SAP Experts,

Our customer has an specific requirement regardind how TM  triggers the delivery proposal in ECC.

How standard works is as follow:

Create a Sales order, for example:

     1 SKU and 10 Pieces

*After TM turns this SO into an OTR, creates 10 FU (FUBR 1 PC = 1 FU).

*Once we create the FO with the 10 FU we trigger Delivery Proposal, As you can see, TM generates 1 line item per FU into the FO

Once the Delivery Proposal is in ECC the Delivery is created like this (1 Delivery with 10 line Items 1 FU = 1 Line item)

For Warehouse reasons, The Delivery must be created like this:

What are the best options to do this?

So far we are trying to do this merge in TM but because of the consumptions of the related FU we are having some troubbles with the Shipment integration.

Best Regards,