[yorkietalkjilly]

To differentiate where she should go potty, I believe I would go with idea of the pee pad in the long flat litterbox. There are very flat type plastic boxes made to hold pee pads. She will learn over time that she goes on whatever is in that litterbox and on nothing else, including rugs anywhere else in the home. She will key to the box and its location in the home but will also begin to associate the pee pads in it with going in the litterbox, which has now become her acceptable "bathroom".

Eventually, if wanted, you should be able to start to lay some pee pads all around the litterbox in addition to the one in it and one day, with the pee pads all around, remove the box from under the center pad. Hopefully by that time, she will have long associated peeing and pottying with the pee pad, too, and segue right into doing her business on the pads only placed in the same site where the potty box used to be. Over time, you should be able to cut down to 1-2 pee pads where the box used to set and not have to use several. By that time, she should have it deeply ingrained in her mind and muscle memory that she goes to where the pee pads are to toilet and on nothing and no where else in the home. In fact, it should be quite difficult for the well-trained pee pad dog to toilet anywhere else but on the pee pad or similar paper in that area of the home where the litterbox was.