COMMAND NAME:

        DELETE

USAGE:
        DELETE SIGNAL <sig_name>|<sig_position> <yes|no>
        DELETE ALL <yes|no>

        This command is used to delete entire signals from the database.
        
        Delete a signal from the database and update the screen.
        The user specifies the signals to be deleted via signal name or
        number from the keyboard or signal position via the LEFT 
        MOUSE BUTTON. "DELETE ALL" will delete all of the signals in 
        the database.
