private void UpdateFormDefinitionWithGlobalPermissions(IUserGroup userGroup, XElement bindingsElement, XElement placeHolderElement)
{
var helper = new GlobalPermissionsFormsHelper(
SR.GetString("Composite.Plugins.UserGroupElementProvider", "EditUserGroup.EditUserGroupStep1.GlobalPermissionsFieldLabel"),
SR.GetString("Composite.Plugins.UserGroupElementProvider", "EditUserGroup.EditUserGroupStep1.GlobalPermissionsMultiSelectLabel"),
SR.GetString("Composite.Plugins.UserGroupElementProvider", "EditUserGroup.EditUserGroupStep1.GlobalPermissionsMultiSelectHelp")
);
bindingsElement.Add(helper.GetBindingsMarkup());
placeHolderElement.Add(helper.GetFormMarkup());
EntityToken rootEntityToken = ElementFacade.GetRootsWithNoSecurity().Select(f => f.ElementHandle.EntityToken).Single();
IEnumerable<PermissionType> permissionTypes = PermissionTypeFacade.GetLocallyDefinedUserGroupPermissionTypes(userGroup.Id, rootEntityToken).ToList();
helper.UpdateWithNewBindings(this.Bindings, permissionTypes);
}