IBM z/OS Debugger Utilities: z/OS Debugger User Exit Data Set
This function assists you in preparing a TEST runtime option data
set that is used by the z/OS® Debugger Language Environment® user
exit. The z/OS Debugger Language Environment user
exits use this TEST
runtime option string to start
a debug session. The tool that can help you complete this task is
found under option 6, called z/OS Debugger
User Exit Data Set,
in IBM® z/OS Debugger Utilities.