anything which is then in process of being done by or in relation to the Governor or by or in relation to any minister of Northern Ireland may be continued by or in relation to the Secretary of State or any person appointed by him to discharge the relevant functions; and

any order, regulation, rule, direction, authority, appointment, authentication, approval or other instrument or act effective at the coming into force of this Act as that of the Governor in Council or Governor or any minister of Northern Ireland (other than any appointment as parliamentary secretary in a department of the Government of Northern Ireland) shall continue to have effect as that of the Secretary of State.