Only work around for the new formatting is to change it to the old formatting
I asked for an update on the new UIBuilder on the tester only forum a good few days ago but never got a respone so no idea when its ever coming.
For now what i've done is kept a copy of the Default directory that i've modded to work with the new formatting, but thats now a few test patches behind so i'll probably have to go through the whole thing again just to be safe
I really hope we get one soon because this is a huge PITA.