Enlargement. No non-conforming use shall be enlarged, expanded or extended so that it occupies a greater area of land or floor area than that which was occupied on October 10, 2007, and no additional accessory use, building or structure shall be established on the side of a non-conforming use. This provision notwithstanding, uses may be extended throughout any part of the building or accessory structure that was lawfully and manifestly designed or arranged for such use on October 10, 2007.