private static final String STACKID = "rcp.plugin.partstack.main";

    @Inject
    EModelService eModelService;

    @Inject
    MApplication mApplication;

//    @Inject
//    @Named(STACKID) //doesn't work - why?
    
    @Execute
    public void execute() {
//        MPartStack mainStack = eModelService.findElements(mApplication, STACKID, MPartStack.class, null).get(0);
        MPartStack mainStack = (MPartStack) eModelService.find(STACKID, mApplication);