Using SEG to delete groups of messages from the screen

Operators can delete groups or “segments” of non-action messages on the screen using the CONTROL E,SEG command. SEG specifies the number of message lines to be deleted; you can define this value as a keyword on the CONSOLE statement.

Use the following keyword on the CONSOLE statement to specify the number of lines the system deletes when an operator enters CONTROL E,SEG:

SEG: Specifies the number of lines to be deleted when the operator enters a CONTROL E,SEG command.

The IBM® default depends on the type of console. z/OS MVS Initialization and Tuning Reference provides default information for different console devices.