}
@Override
public TabbableController createEditController(UserRequest ureq,
WindowControl wControl, ICourse course, UserCourseEnvironment userCourseEnv) {
DENEditController childTabCntrllr = new DENEditController(getModuleConfiguration(), ureq, wControl, this, course, userCourseEnv);
CourseNode chosenNode = course.getEditorTreeModel().getCourseNode(userCourseEnv.getCourseEditorEnv().getCurrentCourseNodeId());
// needed for DENEditController.isConfigValid()
getModuleConfiguration().set(CONF_COURSE_ID, course.getResourceableId());
getModuleConfiguration().set(CONF_COURSE_NODE_ID, chosenNode.getIdent());
return new NodeEditController(ureq, wControl, course.getEditorTreeModel(), course, chosenNode, course.getCourseEnvironment()