code: private void jCheckBoxAutoExpandActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jCheckBoxAutoExpandActionPerformed
          parent.getGraphPanelChart().getChartSettings().setExpendRows(jCheckBoxAutoExpand.isSelected());
          refreshGraphPreview();
      }
docs: GEN-LAST:event_jCheckBoxDrawMarkersActionPerformed