Instructions for vintage Singer presser feet

Question

I am trying to learn how to use the wide range of presser feet for Singer 222k that are not covered in the original manual.

I assume Singer gave instructions for their use - would these be in a collection somewhere, or has no-one ever tried to find/collate them?

Can anyone tell me where I can find these online, if possible, so that I could print/download those I need.

Many thanks for your efforts