This is something that is in my queue for future development. There isn't a clean way to do this right now really. You could write some external script to generate patch file xml, but that would be pretty tedious.
The code generator pipeline is in the process of becoming more isolated from the user interface. Eventually we'll have some kind of API that can drive the code generator independently of the user interface and then people will be able to patch more dynamically and create alternate interfaces more easily.