Armature Graph Tools (add-on)

Arthur Shapiro writes:

Hello! My name is Arthur Shapiro and I work as a Rigger/Character TD/Tools Developer.
Today I would like to present my new free Blender add-on – Armature Graph Tools.
It will help you with operating on a big amount of animation curves, filtering them in a Blender’s Graph Editor and syncronizing their visibility with the rig bones’ visibilty.

You can download it from my Gumroad page and find the manual here.