The hardware in this section is for automatically swapping all, or some of the hardware in your kitchen. If you have nothing in your model selected and you pick one of these you will have the choice to apply this hardware to every cabinet in your kitchen. You can also select a group of cabinets and then a piece of hardware and only those cabinets will have their hardware swapped. Finally, if you want to remove a particular piece of hardware, use the "delete hardware" choice near the bottom.