Tutorial on how to create custom stitch combinations on the Bernette b38 sewing machine.
The information in this video can be applied to these other machine models, because of how similar the machines are:

Janome 4120QDC, 4120QDCB, 4120QDCT,
Janome 4300QDC, Janome 5300QDC

If you have one of these machines, please note that some buttons may be shaped differently, or in slightly different locations, and that your machine will have a different color scheme.