In addition to the commands in the ISPF system command table, DTL provides a way to define and store commands that are specific to your application. You can also define commands that override the ISPF system commands. You define and store these commands within a command table for your application. These application-specific commands define the responses to commands entered by the user in the command entry field and commands linked to pull-down choices and key mapping lists.

You can define only one command table for an application. ISPF locates the command table using the defined application-identifier for the command table.

For a complete description of ISPF command processing and a list of the ISPF system commands, refer to the z/OS ISPF User's Guide Vol I.