I want to add a note from the last article - You CANNOT use this to draft patterns if you want to sell them. Wild Ginger has software called Cameo which allows your to sell your work. It is more expensive, but the Pattern Editor is similar (with added features) and there is a free trial of that on the website, too.
Can you then take this pattern you've digitized and apply individual measurements to it? So you could have your base pattern and the software would grade it to specific clients?