You can start the message editing utility by one of the following methods:
MEU 3 SELECT CMD(EXEC 'CICSTS31.CICS.SDFHCLIB(DFHMEUCL)'
'MEULIB(CICSTS31.CICS)')
TSO EX 'CICSTS31.CICS.SDFHCLIB(DFHMEUCL)' 'MEULIB(CICSTS31.CICS)'
For more information about using ISPF dialog services to start functions (such as the message editing utility), see the ISPF Dialog Management Guide and Reference.