ocal project content, a link may be
          added to version control so that it may be shared.  Once added to version control it cannot 
          be checked-out, since they are immutable, however they can still be deleted.</P>
        <P>A file-link may be opened in a tool via the project window in the same fashion that 
        a normal file is opened (e.g., double-left-mouse-click or drag-n-drop onto a tool box icon).
        Such a project file may also be opened within a Tool using its <B>File->Open.