Oh, I see... so really the only time you can change the width on the 401 or 500 is when you're using a cam that you put into the machine, not a built in one. Interesting. Just out of curiosity, do you know how many cams are available for these? Or is there a list somewhere on the net that has pictures of the cams made and pics of the corresponding stitches they do? Since the 401 and 500 do like 22 stitches, I imagine there has to be at least another 10-20 available as cams?