Each switch definition can have its own logon message defined. During a switching operation, you can display a message to devices defined to the switch definition by using the Start Switch Screen (STRSWTSCN) command. When the STRSWTSCN command is run, the devices are allocated and the logon screen message is displayed on the devices.
A companion command, End Switch Screen (ENDSWTSCN) should be used when the switching operation is complete to release the devices, allowing users to sign on.
Note: To automate switching operations, you should include the STRSWTSCN and
ENDSWTSCN commands in your event program.