Before coding your first CLIST, you must create a CLIST data set. There are two ways to create and edit a CLIST data set:

1. Using options 3 (UTILITIES) and 2 (EDIT) of ISPF/PDF:
   1. Create a data set using the allocate panel in ISPF (typically option 3.2 on the primary menu).
      • To simplify execution, specify CLIST as the data set type.
      • To create a data set with the same attributes as another, such as a system CLIST library, use option 3.2 to view the attributes of the existing data set and then allocate the new data set.
   2. Code your CLIST in the full-screen environment using the ISPF/PDF editor (typically option 2).
   3. Modify the CLIST by making corrections directly to the data on the screen.

   For more information about creating and editing data sets under ISPF/PDF, see z/OS TSO/E Primer.

2. Using the TSO/E EDIT command and its subcommands (this method includes option 6 of ISPF/PDF.):
   1. Include the CLIST keyword on the EDIT command.
   2. Enter and save your CLIST statements, TSO/E commands, and TSO/E subcommands.
   3. Use subcommands of EDIT to modify the CLIST.

   CLISTs created with the EDIT command cannot contain characters of the double-byte character set (DBCS).

   More information about creating and editing data sets under TSO/E can be found in z/OS TSO/E Command Reference.