I'm going to be of no help, but I use puppy pads. My Papillon is 6 months old and has a pen with her bed, puppy pad, and water in it for bedtime or when we're going to be gone. As time has passed she almost never goes on the puppy pad in her pen. I think she likens the whole pen to her den and she really tries not to go in it. She makes it the whole night and generally the days we're gone from 9 am until 5 pm. Not always, but at least she has that option if she needs it.
When we're home she goes to the back door when she needs to go out. But she's never gone back into her pen to use a puppy pad even when we were home and she had the sometimes accident in the house.
When we're home she goes to the back door when she needs to go out. But she's never gone back into her pen to use a puppy pad even when we were home and she had the sometimes accident in the house.