I did it back in November. Its pretty straight forward. Most of the questions are universal and you do need to know specific software although I felt it skewed a little to 3shape. I've never used 3shape but I was able to get through it fine
With the new 3.2 is does it automatically when you get to the last window. The is a tab that says screw channel. Click that and you're done. One of my favorite new features