void MainWindow::refreshModels(void) {
    QMenu *parent = ui->menuModel_Operations;
    std::list<std::string>::iterator    pIT;
    HumanManager &oHM = HumanManager::getSingleton();
    QObjectList::iterator   qoIT;
    QRegExp qacRE("^models_");
    QList<QMenu*> foundEntries;
    QList<QMenu*>::iterator fEIT;

    // refresh resources
    oHM.refreshResources();

    // search "old" entries and remove them
    foundEntries = parent->findChildren<QMenu*>(qacRE, Qt::FindChildrenRecursively);

    for (fEIT = foundEntries.begin(); fEIT != foundEntries.end(); fEIT++) {
        QMenu *mVictim = *fEIT;
        QAction *aVictim = mVictim->menuAction();
        mVictim->removeAction(aVictim);
    }

    // rebuild Menuentries
    for (pIT = oHM.meshBegin(); pIT != oHM.meshEnd(); pIT++) {
        std::string mdName = *pIT;
        std::stringstream convert;

        if (mdName.length() > 1) {
            QAction *nwAction = parent->addAction(QString(mdName.data()));
            nwAction->setEnabled(TRUE);
            nwAction->setVisible(TRUE);
            nwAction->setObjectName(QString(convert.str().data()));
            nwAction->setParent(parent);
            connect(nwAction, SIGNAL(triggered()), this, SLOT(action_loadObj()) );
        }
    }
}