Texas Property Code - PROP § 112.033. Reservation of Interests and Powers by Settlor

(1) a beneficial life interest for himself;

(2) the power to revoke, modify, or terminate the trust in whole or in part;

(3) the power to designate the person to whom or on whose behalf the income or principal is to be paid or applied;

(4) the power to control the administration of the trust in whole or in part;

(5) the right to exercise a power or option over property in the trust or over interests made payable to the trust under an employee benefit plan, life insurance policy, or otherwise; or

(6) the power to add property or cause additional employee benefits, life insurance, or other interests to be made payable to the trust at any time.