can someone recommend a good video about how to work with waste yarn?

I got my knitting machine this week and am a total beginner. I am already able to knit basic flat panels, but haven't really found any videos on how to use waste yarn and how to secure the stitches afterwards. Would be really grateful if somebody could recommend any videos or books that explain how to cast on waste yarn and how to secure the stitches of the main colour when removing the waste yarn!