Thus also why a status message that is sent to other than *EXT can act
similar to an *ESCAPE message [/percolated/ in the same manner] in the
receiving program, and why the Monitor Message (MONMSG) supports
enabling a monitor; only those message types of the Exception Message
(*EXCP) class, including *ESCAPE, *STATUS and *NOTIFY Message Type
(MSGTYPE) can be monitored.