(1) The father may, when he names a guardian, exclude the appointment of a supervisory guardian.
(2) The father may direct that the guardian named by him is not to be subject, in investing money, to the restrictions laid down in sections 1809 and 1810 and is not to require the ratification of the supervisory guardian or of the family court for the legal transactions set out in section 1812. These directions are to be regarded as having been made if the father has excluded the appointment of a supervisory guardian.