@Override
protected void chooseAddPage(MenuManager menuManager, final int insertIndex) throws Exception {
if (m_fields == null) {
m_fields = Lists.newArrayList();
WidgetObserveInfo root =
(WidgetObserveInfo) m_provider.getWidgetsContainer().getObservables().get(0);
fillFields(m_fields, root);
}
//
for (final WidgetObserveInfo field : m_fields) {