KILLSCREEN   ScreenName

This command will delete the screen "ScreenName".
ScreenName IS case-sensitive.

IMPORTANT :

1.- All windows must be closed before the screen can close. If they are
    not, you will be notified with an EasyRequester.

2.- Gui4Cli will try to close the Public Screen you tell it.
    It will NOT check if this screen has been opened by Gui4Cli.
    Becarefull, therefore, not to close a screen of another program !!

You can check if the screen closed, with the IFEXISTS command.