code: public void moveDown(I_CmsEditableGroupRow row) {
  
          int index = m_container.getComponentIndex(row);
          if ((index >= 0) && (index < (m_container.getComponentCount() - 1))) {
              m_container.removeComponent(row);
              m_container.addComponent(row, index + 1);
          }
          updateButtonBars();
      }
docs: Moves the given row down.
  
  @param row the row to move