(1)Schedule 5 (which defines reserved matters) shall have effect.
(2)Her Majesty may by Order in Council make any modifications of Schedule 4 or 5 which She considers necessary or expedient.
(3)Her Majesty may by Order in Council specify functions which are to be treated, for such purposes of this Act as may be specified, as being, or as not being, functions which are exercisable in or as regards Scotland.
(4)An Order in Council under this section may also make such modifications of—
(a)any enactment or prerogative instrument (including any enactment comprised in or made under this Act), or
(b)any other instrument or document,
as Her Majesty considers necessary or expedient in connection with other provision made by the Order.