Sch 5 para 4
(1) A simplified planning zone direction is— (a) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . (b) if the request was for the alteration of a scheme, a direction to alter it in such manner as the Scottish Ministers consider appropriate, and ... requires the planning authority to take all the steps required by this Schedule for the adoption of proposals for the ... alteration of a scheme. (2) A direction under sub-paragraph (1)(b) may extend— (a) to the land specified in the request to the authority, (b) to any part of the land so specified, or (c) to land which includes the whole or part of the land so specified, and accordingly may direct that land shall be added to or excluded from an existing simplified planning zone.