public function getCMSFields()
 {
     $fields = parent::getCMSFields();
     $fields->add($MenuRootField = DropdownField::Create('MenuRoot', 'Menu Root', singleton('SidebarMenuWidget')->dbObject('MenuRoot')->enumValues()));
     $MenuRootField->setDescription("Select from where the menu starts.<br/>\n                 <strong>Root</strong>: Show the entire page tree.<br/>\n                 <strong>Selected Page</strong>: Show the children of a specific page.<br/>\n                 <strong>Current Page</strong>: Show the children of the page currently being viewed.<br/>\n                 <strong>Root of Current Page</strong>: Show children of the current pages top most page.<br/>");
     $fields->add($ShowAllField = CheckboxField::Create('ShowAll', 'Show All'));
     $ShowAllField->setDescription("Show all pages, even those who are marked as not to show in menus");
     $fields->add($RootPageField = TreeDropdownField::Create("RootPageID", "Root Page", "SiteTree")->setDescription("If <strong>MenuRoot</strong> is set to &quot;Selected Page&quot; set which page to start the menu from"));
     $RootPageField->displayIf("MenuRoot")->isEqualTo("Selected Page");
     $fields->changeFieldOrder(array("WidgetName", "WidgetLabel", "Enabled", "MenuRoot", "RootPageID", "ShowAll"));
     return $fields;
 }