I have a Viking, but a different model. I would definitely make time in your schedule to take a class. You can also just call the dealer and ask about the setting.
You might also want to look at this youtube video "Husqvarna Viking Sapphire 960 14 Satin Stitches for Applique":
http://www.youtube.com/watch?v=gDtS6eLBG6Q