Unless you have your machine set up on a frame you cannot use the Quilters Cruise Control. However on my Juki TL98Q they had a small speed controller box that would allow you to adjust the speed of the machine but you still had to learn how to control your stitches as it only controlled the speed of the machine and not the stitch length. I'm not sure if Viking offers this item for their machines but I certainly would call your dealer and ask them.