My White Age?? the place where you wided the zigzag- is a, sorry I had to look at mine so I would to call it. Ther is a finger hold switch with - little left arrow mark--move switch show the needle in left position - Center position - little right arrow mark- show the needle in right position. the little finger switch , has three position - left - center- right. Mine is stiff yours maybe to. I hope you understand this. Theresse