The ZONEEDIT command can be used instead of multiple UCL statements to make mass changes in selected SMP/E entries in the same zone. You can also use the command add certain subentries to selected SMP/E entries in the same zone. Here are some examples of when you might want to use the ZONEEDIT command:

• To change all the volume serial numbers in all the DDDEF entries in a specified zone
• To change the ddname for the print output data set in all the UTILITY entries in the global zone
• To change a zone name in all the cross-zone subentries in a specified target zone
• To modify path names of DDDEF entries during the service process for OS/390® or z/OS® UNIX System Services
• To add a UNIT value to all DDDEF entries in the specified zone that do not currently have a UNIT value