&SYSMSG

&SYSMSG indicates whether the CONTROL statement's MSG or NOMSG option is active. The value ON indicates that CONTROL MSG is active, and the CLIST can display informational messages at the terminal. The value OFF indicates that CONTROL NOMSG is active, and the CLIST cannot display informational messages at the terminal.

Your CLISTs can use &SYSMSG to test which option is in effect, or to change the option. For example, if you wanted to make sure that informational messages are displayed at the terminal, you can code:

SET &SYSMSG = ON
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