MERGE
CTRACE COMP(SYSJES) SUB((USRXIT)) FULL
CTRACE COMP(SYSJES) SUB((MSGTRC)) FULL
CTRACE COMP(SYSJES) SUB((XCFEVT)) FULL
CTRACE COMP(SYSJES) SUB((FLOW)) FULL
MERGEEND
You can write an IPCS CLIST to issue the CTRACE command for the four sublevels and merge the output automatically. See z/OS MVS IPCS Customization for information on writing a CLIST.