This is a tutorial to show you how to use the easing script in photoshop. This tutorial contains the basics for creating a motion or squash tween. Let me know in the comments below if you have discovered anything else that this script can do or you know of another way to achieve easing in photoshop.

Link to script: https://github.com/timothywhalin/Photoshop-Easing-Script
Link to visualised eases: http://easing.webflow.io/