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This displays the keys ALT + H.
Ctl + Alt + C Create a new session
Ctl + Alt + N move to the next sessions
Ctl + Alt + P move to the previous sessions
Ctl + Alt + D detach
Ctl + Alt + K Kill
screen -ls list all available screens
Ctl + Alt layout save default
Then when you detach and re-attach to the session the layout should be restored.
CtlAltShift # Create another window
CtlAltTab # Moving from another window
CtlAltC # Create new session
CtlAlt| # Splitting vertical
CtlAltX # Kill current split sesion