Certain Control‑M defaults can be modified. For example, instead of submitting all jobs, it is possible to submit only the first job in a JCL member.

For details on how to change product defaults, see the following:

• "Control-M customization considerations" in the INCONTROL for z/OS Installation Guide: Customizing.
  This topic describes how to install most optional wishes by setting parameters in the CTMPARM member, though some optional wishes are contained in the IOADFLT member instead of the CTMPARM member.
• the IOA administration chapter of the INCONTROL for z/OS Administrator Guide.