Walk cycle to shape key morph to ball bounce cycle

i’ve made an animation cycle and used shape keys to morph into a sphere, i wanna continue the cycle with the ball bouncing while applying the squash and stretch methods to the ball…but the main object used in the morphology already has a rig applied how do i proceed with the animation of the ball while applying the squash and stretch methods…is it possible to use another ball with its own rig and somehow hide the primary object used in morphology…hope my question is understandable

Your best bet will be to have another ball and switch the rendering visibility after the shape key morph is finished. As alternative, try Lattice modifier for squash and stretch. It can function properly even when it is after Armature in the stack