A judicial proceeding, whether filed by petition under the district court's in rem or in personam jurisdiction, involving a trust may relate to one or more of the following matters:

1. (1) to confirm an action taken by a trustee;
2. (2) upon the filing of an account, to settle and allow the account;
3. (3) to determine the persons having an interest in the income or principal of the trust and the nature and extent of their interests;
4. (4) to construe, interpret, or reform the terms of a trust, or authorize a deviation from the terms of a trust, including a proceeding involving section 501B.31;
5. (5) to approve payment of the trustee's, attorney, or accountant fees, or any other fees to be charged against the trust;
6. (6) to confirm the appointment of a trustee;
7. (7) to accept a trustee's resignation and discharge the trustee from the trust as provided in section 501C.0705;
8. (8) to require a trustee to account;
9. (9) to remove a trustee as provided in section 501C.0706;
10. (10) to appoint a successor trustee when required by the terms of the trust instrument or when by reason of death, resignation, removal, or other cause there is no acting trustee;
11. (11) to appoint an additional trustee or special fiduciary whether or not a vacancy in trusteeship exists as provided in section 501C.0704;
12. (12) to confirm an act taken by a person with respect to a trust while there was no acting trustee or otherwise in compliance with section 501C.0701;
13. (13) to subject a trust to or remove a trust from continuing court supervision under section 501C.0205;
14. (14) to mortgage, lease, sell, or otherwise dispose of real property held by the trustee notwithstanding any contrary provision of the trust instrument;
15. (15) to suspend the powers and duties of a trustee in military service or war service, in accordance with section 525.95, and to order further action authorized in that section;
16. (16) to secure compliance with the provisions of sections 501B.33 to 501B.45, in accordance with section 501B.41, relating to charitable trusts;
17. (17) to determine the validity of a disclaimer under sections 524.2-1101 to 524.2-1116;
18. (18) to transfer the trust's principal place of administration as provided in section 501C.0108;
19. (19) to redress a breach of trust;
20. (20) to terminate a trust;
21. (21) to divide a trust or to merge two or more trusts as provided in section 501C.0417;
22. (22) to approve a nonjudicial settlement as provided in section 501C.0111;
23. (23) to approve, modify, or object to a proposed trust decanting as provided in section 502.851; or
24. (24) to instruct the trustee regarding any matter involving the trust's administration or the discharge of the trustee's duties, including a request for instructions and an action to declare rights.