Instructions from the video:
When design changes hit, the match appearance tool will make those changes easier.
Select View>3D Views>3D Perspective View. Select Edt>Select All. This will select all of the items in the model. Left click to select the element that you want as your primary element. Right click and select Match Appearance. All other similar elements, on all locations included in the selection, will take on the primary appearance.
Great way to update cabinets in an entire model. A fantastic tool to make your work quicker.