So, I'm slowly becoming familiar with Fusion and hope to use it in some upcoming projects.
I see that all the tools have these "s1 s2 s3 s4..." buttons along the top of their configuration panels. They appears to be part of something called "Sets". But I see no reference to them in the manuals. Can anyone explain what they are and what they are used for? Or point me to the part of the documentation that discusses them?