Here is an excellent exercise you can regress and progress for scapular stability. If you watch a fighter prior to their punch, you will see a counter movement that helps to create power in their strike. Scapular stability helps to promote the transfer of power from the legs to the hands. The pulling and pushing of the arms helps with this movement, which also contributes to rotation at the thoracic spine.
Here is an exercise targeting just that - scapular stability that promotes thoracic rotation. Be sure to have the sound on and listen to Mike's verbal cues. You can also appreciate the tactile cues Mike provides.
Remember - to promote motor learning you must balance feedback with change in performance. Here - Mike is promoting my performance to ensure good alignment. At some point - cues would have to decrease to promote motor learning, even if performance decreases.