COMMAND NAME:

        OPEN

USAGE:
        OPEN signal name | pt [, row_number]

        This command opens a signal for viewing.  During interactive 
        simulation, this command will enable displaying the activity 
        on the signal as the simulation progresses.

        In post-process mode, this command will bring up the given
        signal only if the activity on it has been read in from a file.

        The rowm number argument is optional and specifies the row
        at which this signal will be displayed.  If not specified,
        the signal will appear at the current bottom of the list of
        signals on the screen.

        Signals can be chosen by pointing to the signal on the GED
        schematic.
