Improve Handling of Kit/Package Items on the Create Returns Window

Currently, on the Create Returns window, when creating a return from a historical invoice, you can select what line items to add to the return.

As "package" items (exploded kits) are treated as individual line items, you currently have to select the main kit/package item and all of its component items individually.

It would be nice if you could select the main package item, and all of the component items would be selected along with it.