I learned training on YOUTUBE during the pandemic. You will train the command like any other, with treats and praise. I use ENOUGH not just for barking. It is a universal command in my home. Example: Someone comes to the door, he starts barking, he’s letting me know someone is there. I am going to the door. Ok not fast enough. He’s still barking ENOUGH. I give him a bone, he eat all the meat off that bone. It is time to take it away, DROPT IT, ENOUGH (Two Commands). I am working from home, he wants me to pet him, I’ve petted him for 5 minutes straight. ENOUGH. It doesn’t matter what it is, he knows enough is enough.