This section applies to directions under this Part.
A direction must be in writing.
A direction may be varied or revoked by a further direction.
A person to whom a direction has been given has a duty to comply with it.
That duty is enforceable in civil proceedings by the person by whom the direction was given—
for an injunction,
for specific performance of a statutory duty under section 45 of the Court of Session Act 1988, or
for any other appropriate remedy or relief.