(a) After an initial application is filed, the court may stay:
(1) a proceeding under a later filed application in another court to:
(A) invoke the jurisdiction of that court; or
(B) obtain an order under this chapter; or
(2) a proceeding instituted after the initial application has been filed.
(b) A stay under this section affects only an issue subject to arbitration under an agreement in accordance with the terms of the initial application.