Before you put any money into it, take it to a Bernina dealer/ repair person. Hopefully you will find one that has been in business long enough to really know the 930. Have them check it out, and if the machine does have the feature have them show you how to do it. It is really hard to explain over the internet. You talk about the back of the pedal, I tap on what I would say would be the front of the pedal. The 930 is considered to be one of the best machines that Bernina has made. I will never sell mine. It is my old friend that I can always count on to run.