code: public void setExpandedSectionsEnabled(final boolean EXPANDED_SECTIONS_ENABLED) {
          expandedSectionsEnabled = EXPANDED_SECTIONS_ENABLED;
          init(getInnerBounds().width, getInnerBounds().height);
          repaint(getInnerBounds());
      }
docs: Enables / disables the use of wider sections
  @param EXPANDED_SECTIONS_ENABLED