I use Studio 7 for Atmel projects using the AtMega644P (30K lines of assembly language!), and I have successfully written a short test program in Sketch that runs on my new Zero. But I am at a loss as to how to build the same project in AS7. Any pointers on how to create the project, where to find the needed .h files, etc., would be appreciated. I've spent hours looking through the overwhelming amount of stuff on the web, but can't figure out how to get this thing started.