I have tried creating Mass HU's by two different ways.
Please note that for both of these options, you need to apply the following notes before proceeding further.
2815759 - RF Receiving: Mass HU Creation for Receipt of Handling Units
Goto /SCWM/RFUI
Inbound Processes >> Receiving of Handling Units >>Rec. HU by delivery
Enter the delivery Number
Next Screen will display the details about the delivery
Click MulHU
This will display the following screen. Here scan the Product code and the quantity per HU. Click Next F1.
When you click on next, following screen appears and it shows number of Hus which got created. If you click on List, it will display all HUs
Now this can be processed further.
2889492 - Easy Packaging Screen in Goods receipt – packing proposal
Create Inbound Delivery and goto Pack Screen
When you try to see the packing proposal, this will display the following screen and this can be changed to any quantity.
If you try to create Nested HU, this facility is not Included in this note.
Both the options still have Nested HU feature missing.