Creating a new Returns Order asks for Mode of Delivery?

Im trying to create a new returns order in AX but it asks for a Mode of Delivery, I don’t see it on the form? I have a little development experience with AX so is it possible for me to add that field to the form? I’ve gone into the setup and when I click on Add Field I dont see the Mode of Delivery field anywhere. I’ve also checked the other fields on the form and all are visible, so its not hidden

It is on the delivery tab from memory - when are you getting it on the creation prompt? There is a delivery section on that screen, it is there as well - unless of course you have developed it out. Then it is mandatory with the US functionality and the carrier interface from memory - but all of this is without reference to the software!