Your workpieces should be the simEntities.
Your container should be an entityContainer
Your truck should also be an entityContainer as it is possible to contain either entities or containers.
load and unload your containers with addTo and removeFrom
Insert workpieces into Empty Containers with "AddTo"
Insert full container into empty truck
Move truck to customer with "entityConveyor"
unload truck with "removeFrom"
now, depending on how you want to model your simulation, you have some possibilities: I would suggest to unload the full container from the truck and load it with an empty one. In this case:
load truck with empty container at customersite
move truck to factory with entityConveyor
unload empty container from truck
On the customers site, you have to:
unload the full container
delete workpieces with EntitySink
move empty container to
kind Regards,
Stefan