modelManager.setChanged();
modelManager.notifyObservers(new ObserverNotification(NotificationType.startBatchProcess));
modelManager.clearChanged();
for (final Object obj : items) {
final ModelElement me = (ModelElement) obj;
modelManager.addModelElement(me);
}
modelManager.setSimulationStartTime(ppcModel.getSimulationStartTime());
modelManager.setSimulationEndTime(ppcModel.getSimulationEndTime());