Saving just the patch from PC3

Ok i see alot of cool new features in Hog 4 PC so I would like to REPROGRAM from "almost" scratch on the hog 4 platform. I have my show on Hog 3 PC . Is there a way to "JUST SAVE THE PATCH" from my hog3pc show and load it into the new Hog4pc platform so I can do this? If so How step by step POR FAVOR
(Mike May Rancho Mirage In House Live entertainment LD using Hog programming wing and one universe widget with 32" touchscreen computer)