Commands in the application command table are in effect only for the application you are running. Defining commands in the application command table lets you customize the set of commands you need for a particular application without redefining the system command table for each application.

ISPF provides a utility to create and modify the command tables. Enter ISPF option 3.9 from the ISPF Primary Option Menu. For more information about creating application command tables, refer to the z/OS ISPF User's Guide Vol II or the z/OS ISPF Dialog Developer's Guide and Reference.