We have production orders set to ‘Preassign lot serial numbers.’ We can populate each one manually but it is extremely cumbersome. I am trying to get the below result(base on full box qtys of 60) through an import scenario

The import scenario functionality has this at the order level but there is no where to specific qty.

At the line details level it looks like I would need to manually assign lot # and qty

At the end of the day we are looking for a non-manual way to serialize our full cases of product. I know there have been several product ideas around this but I am look for a practical solution, not to pray and wait.
Has anyone implemented anything like this?