code: public void showParamPanel(String name) {
          if (name == null || name.equals("")) {
              return;
          }
  
          // exit if panel name not found. 
          AbstractParamPanel panel = tablePanel.get(name);
          if (panel == null) {
              return;
          }
  
          showParamPanel(panel, name);
      }
docs: Shows the panel with the given name.
  <p>
  Nothing happens if there's no panel with the given name (or the name is empty or {@code null}).
  <p>
  The previously shown panel (if any) is notified that it will be hidden.
  
  @param name the name of the panel to be shown