with regard to a particular question or dispute.
may be represented by and bound by another person who has a substantially identical interest with respect to the particular question or dispute but only to the extent there is not a conflict of interest between the representative and the person represented.
If not precluded by conflict of interest, a guardian ad litem may be appointed to represent several persons or interests. A guardian ad litem may act on behalf of the person represented with respect to any matter arising under this title, regardless of whether a judicial proceeding concerning the trust is pending. In making decisions, a guardian ad litem may consider general benefits accruing to the living members of the family of the persons represented.
IC 30-4-6-10.5