Hi. I recently started learning work of exporting to source.

I have model consisting of several meshes, each with shared keys, and they have shared key that performs a similar action. For example: body with key that change size of body, and clothes with key that adjust to body size.

And instead of making flex for each model, is it possible to make general flex controller, such as driver for linking shared keys in blender? If it is possible, could you tell how to do it?