Starting sessions

To start additional sessions, you can:

Use the SESSIONS keyword on the OMVS command to specify the number of sessions you want started automatically when you log into the shell. By writing a small REXX program or CLIST, you can customize your invocation of the OMVS command so that every time you log into the shell multiple sessions are started.
Use the OPEN subcommand during a session. This starts another shell session and automatically switches to it. The session is automatically assigned the next unused session number.