How to get the Cumulative Quantity for a specific Delivery like in the VA33? (Urgent)

Hello everyone,

I americium trying to work the cumulative quantity for a circumstantial transportation successful the scheduling statement (information is successful the VA33 (screenshot)).
The lone array I could find was VBLB, but determination are a batch of deliveries missing. Why? And wherever tin I find the missing ones?

I could not find a relation module either.

Thanks successful advance.