The Expand / Overview screen presents a general view of the status of the Expand subsystem.
The top portion of the screen shows the result of a general determination of Expand availability by checking the existence of mandatory processes $NCP and $ZEXP . The lower portion of the screen shows any System not accessible via Expand, and any path or line not in a 'good' state. The middle portion of the screen reflects counts for these problem areas.
In the event of a severe error, an additional error message is displayed.