Hiding fields on the MSCA UNPACK Screen

[nitink]

Hi,
I need to customize the MSCA UNPACK screen . I need to hide the existing Item,Qty,UOM fields which are mandatory fields tha are visible currently the UNPACK screen. I have not worked on MSCA before, so could anyone please help on what I need to do? Someone told me I need to extend the existing PackUnpackSplit Page.

Thanks,
Nitin.