This feature seems like it was overlooked. We are in need of the ability to edit the contents of a duplicate shipment. There are many situations that occur where we need to take all of the info/data of the customer and create the same shipment, but with different contents. In many cases we need to copy ALL of the data in a shipment to a new shipment but with changing the contents of the package. If a size goes out wrong in our shipping department the correct one already pulled from our inventory, but did not actually go out. I will create a pre paid shipping label for them to send it back, and then the next thing I need to do is create duplicate shipment with the same contents, but minus what they already received in their first order. 

PLEASE ADD THE OPTION TO EDIT CONTENTS ON A DUPLICATE SHIPMENT! 

Thank you and shipping easy is doing a great job evolving and keeping up with customer needs.