TRACE1

Use the TRACE1 command to trace the control flow between (or among) nested CLISTs/REXX execs and to display the order of CLIST/REXX exec invocation and execution.

Enter TRACE1 on the OPTION line of the selection panel.

TSO/E redisplays the particular panel with the command still on the OPTION line and with the following message: 
CLIST or REXX exec tracing will be at level 1
Parent topic: Information Center Facility trace commands