(a) Subject to section 1307 of this title, the terms of a trust may grant a power of direction to a trust director.
(b) Unless the terms of a trust provide otherwise:
(1) a trust director may exercise any further power appropriate to the exercise or nonexercise of a power of direction granted to the director under subsection (a) of this section; and
(2) trust directors with joint powers must act by majority decision.