Set Cargo in Mass in reception process

We experiment included door to door shipment with Magaya from Miami FL. to Saint Martin with Magaya reception processs and FLOW task and Final mile deliveries
Our first though was to unpack the container, create oen WR receipt and create the FLOW reception with all commodities. Then regroup commodities on hand and set Cargo release.
It works but require a lot of modification for the user and face the wall of multi containers.

Our request is :
1/ Using the reception process by house shipment which create the same number of Warehouse Receipt and adding the option to create also the Cargo release with pending statut until commodites are located with FLOW reception task.
2/ FLOW reception task should be moved to master level in order to scan commodity as they are unstuffed from the container not house by house.
3/ Create a batch pick and load or laod tasks with select several Cargo Release but creat one task per Cargo release.