protected void initializeValues() {
   super.initializeValues();
   initializeValuesForLoadingGroup();
 }
 /*
  * (non-Javadoc)
  *
  * @see org.eclipse.jface.preference.PreferencePage#performDefaults()
  */
 protected void performDefaults() {
   super.performDefaults();
   performDefaultsForLoadingGroup();
 }
 protected void storeValues() {
   super.storeValues();
   storeValuesForLoadingGroup();
 }