private void addLabelMenu() {
JMenu menu = new JMenu("Labels");
menu.setMnemonic(KeyEvent.VK_L);
createMenuItemWithControlAccelerator(menu, "Re-Label with last label and goto next unlabeled document",
KeyEvent.VK_R, new RelabelAndGotoUnlabeledDocumentAction(), KeyEvent.VK_F8);
add(menu);
}