The following link is an updated Tidy script. It’s not done efficiently. You will need to be in pose mode when you run it. Also It leaves the bones in any bone collection that they are already assigned to. It took me longer than I thought to figure out how to assign a bone to a bone collection. I see Wayne already covered the UI script.
https://drive.google.com/file/d/1UHChZ-j1SrMxkqeqnqyLW3hiAunTT5nf/view?usp=sharing
