Apply The Preserve Volume in the Armature Modifier as a Shapekeys for Export into Game Engines

Apply The Preserve Volume in the Armature Modifier as a Shapekeys for Export into Game Engines

like If i complete animating a character with preserve volume on then i should be able to click a button on the armature modifier to convert only the preserve volume deformations as shapekeys for that animations.

or

even better would be, preserve volume generates labled shape keys with drivers attached to bones they are related to so we can even keep animating further.

preserve volume is awesome. i just want it to be exportable as shape keys