The powers conferred on the Court of Session by section 1 of the [1961 c. 57.] Trusts (Scotland) Act 1961 in relation to any trust taking effect under any will, settlement, or other disposition, are exercisable in relation to any trust constituted by virtue of section 2 of the 1880 Act, and for the purposes of the exercise of those powers the said section 1 has effect in relation to any trust so constituted, as it has effect in relation to any trust taking effect under any will, settlement or other disposition.