The following illustrates how to sew a 1-step Buttonhole:

When the buttonhole has completed the machine will stop sewing automatically.
* It is important that the buttonhole foot stays level at all times, if working on a buttonhole at the top edge of a garment, it may be necessary to insert a piece of fabric at the back of the foot to keep it level.
* If the buttonhole lever touches either the front or back of the buttonhole foot the machine will beep and refuse to sew.