"This statutory jurisdiction is attended essentially for private advice by the court to trustees as to what course of action they should follow where they are in doubt as to the propriety of the action contemplated. The applicant must place before the court all relevant evidence such that the court is fully informed as to the matter in issue. Three situations in which approach to the court is particularly useful are where:
(a) the issue is whether legal proceedings ought to be instituted or defended;
(b) it is desired to effect an early distribution of an estate; and
(c) the trustee is in doubt as to the extent of her or his powers under the trust instrument.
Types of advice which may be sought include questions in connection with the rights and interests of beneficiaries or creditors, jurisdictional queries, whether further enquiry should be made in certain circumstances, the ascertainment of any class of beneficiaries or creditors, the furnishing of accounts, the settling of minor administration problems, and the approval of dealings with the trust property.
The procedure should not be used to determine substantive issues, such as issues of interpretation of the trust document which involved the question of breach of trust by any of the trustees; for the purpose of securing additional powers for the trustees; and for resolving a contest between the trustees or other parties to a trust. Nor should it be used to determine respective rights of beneficiaries. These are matters in respect of which beneficiaries are entitled to initiate proceedings." (footnotes omitted)