We’ve been putting the babies outside several times a day, it doesn’t take them long to love the wide open spaces and even scratch at the door to go out! They kind of know how to get back in but until we’re sure they do we don’t put the dog door in.  Usually takes a few days to learn where the opening to inside is, then another couple to learn how to push open the flap of the dog door.  In a week they will poop outside.  So smart! So cute, SO ADORABLE!!!