Using Granny viewer?
I load the CharacterBodyParts.GR2
Then I load the animations in the animations folder 1 at a time and watch what they are doing.
That's how I found the Mad Hammerer.
Then it was just check a few files here and there.
If I wanted to see what the numbers do? I'd just change them some and run the Game. Trial and error is how many of us figure things out.