To use the templates from DCL level, invoke LSE at the DCL prompt
       and specify DEC DATATRIEVE as the editing environment. You can do
       this in one of two ways:

       o  Use the file type .DTR for the file you wish to edit with LSE.
          Specifying the .DTR file type causes LSE to use the editing
          environment file for DEC DATATRIEVE.

          For example, you want to use LSE to create a DEC DATATRIEVE
          procedure that will generate a payroll report:

          $ LSEDIT PAYROLL.DTR

          This command invokes LSE and sets the language-sensitive
          editing environment to DEC DATATRIEVE. The editing buffer
          on your screen already contains the placeholder {DATATRIEVE_
          session}. Expand {DATATRIEVE_session} by positioning the
          cursor on the placeholder and pressing <CTRL/E>. You can begin
          editing the procedure with LSE.

       o  Invoke LSE at the DCL prompt, set the language to DEC
          DATATRIEVE, and type in the placeholder that begins a DEC
          DATATRIEVE editing session.

          For example:

          $ LSEDIT

          At the LSE prompt, set the language to DEC DATATRIEVE:

          LSE> SET LANGUAGE DATATRIEVE

          In the editing buffer, type {DATATRIEVE_session} as it
          appears here, with the braces ({}). Expand that placeholder
          by positioning the cursor on the placeholder and pressing
          CTRL/E.