Syntax for controlling message management

To control the management of foreign messages, MPFLSTxx recognizes one statement type .FORNSSI. This statement type allows you to specify whether foreign messages (both WTOs and DOMs) are to be presented to any or all subsystem interface (SSI) exits listening to the WTO and DOM broadcast function codes. The .FORNSSI statement has the following syntax.
.FORNSSI   *ALL
                 *NONE
                 NOCHANGE
                 (list of subsystems)