I know it can be done and I did it when I took a Janome class.
However, while it mimiced hand quilting on the top .... on the back, it was far from the look and was not desirable to me in the least. So I quickly forgot about it as a possibility!
Perhaps someone here can walk you thru it.
..... or why not go back to your dealer and have them give you a lesson as to how-to?