There is no big secret here. The next build will be more like a version (5.1) in that it has some new features including nested face frames that can use any existing joint to attach the face frame to the cabinet. This is now being beta tested to try to work out any problems before we release. Not sure how long testing will take but as soon as we are comfortable it will be available as a download.
Joe, yes they are. They require special tooling that is up-side-down from normal as well as a clamp fixture and a rubber coated handling sheet for the center panel. None of this is all that expensive and the programs come directly from the software.