A simple and necessary Blender addon, with a 3D UI, that can set up shape keys to be driven by bones through an automated process. It can work on any model or mesh, including facial shape keys of any character.
Blender Master Shape Keys can separate a shape key into multiple individual shape keys. It also can merge or group shape keys together that makes things easier to manage. In practice this can be seperating both sides of a human model’s lips, for further expression and control.