Sec. 85.250.  CHANGING AMOUNT, PARTIES, AND SURETIES.  On a motion and for good cause shown, and after notice to the parties, the court periodically may:
(1)  increase or decrease the amount of the bond;
(2)  add new beneficiaries;  and
(3)  require new and additional sureties that the facts may justify.
Acts 1977, 65th Leg., p. 2525, ch. 871, art. I, Sec. 1, eff. Sept. 1, 1977.