code: public boolean onClone()
      {
          String strLastCommand = this.getScreenURL();
          if ((strLastCommand == null) || (strLastCommand.length() == 0))
              return false; // Can't process this
          else
              this.handleCommand(strLastCommand, this, ScreenConstants.USE_NEW_WINDOW | ScreenConstants.DONT_PUSH_TO_BROWSER);        // Process the last command in a new window
          return true;    // Handled
      }
docs: "Clone" this screen.
  @return true if successful.