You can download a custom command called cmdblock happiness 2 in the custom commands section and use it like: /cmdblock new red give (player) 500 (You may have to make custom commands to be used in it to prevent multi-clicking)
Owner of: LeeIzaZombie Freebuild and Lava Survival V2 (Shut Down and updated) LeeIzaZombie Survival (Comming back soon)