(1) To ascertain any class of creditors, devisees, legatees, heirs, next of kin or other; or
(2) To direct the executors, administrators, trustees, guardians or conservators to do or abstain from doing any particular act in their fiduciary capacity; or
(3) To determine any question arising in the administration of the estate or trust, including questions of construction of wills and other writings. [Amended by 1961 c.344 §101]