My 6 month old Yorkie Echo is trained for the most part to go outside. He has a plant he pees on and then an area where he poos. Now this is awesome but I am getting a little greedy. I bought a litter box system and want him to do poo and pee in one place. Even when he is in the house he will pee on the pee pad but refuses to poo on it. I am thinking maybe I need two litter boxes but hoping someone here has already tackled and solved this problem and I can be a copy cat

Thanks for the help I appreciate it