code: public void setDescriptionVisible(boolean visible) {
          if (visible) {
              add("Center", split);
              split.setTopComponent(tableScroll);
              split.setBottomComponent(descriptionScrollPane);
              // restore the divider location
              split.setDividerLocation(split.getHeight() - lastDescriptionHeight);
          } else {
              // save the size of the description pane to restore it later
              lastDescriptionHeight = split.getHeight() - split.getDividerLocation();
              remove(split);
              add("Center", tableScroll);
          }
          descriptionButton.setSelected(visible);
          PropertySheetPanel.this.revalidate();
      }
docs: Toggles the visibility of the description panel.
  
  @param visible