public void openProgram(String prog) {
	    MPart part = MBasicFactory.INSTANCE.createPart();
	    
	    part.setLabel(prog);
	    
	    part.setCloseable(true);
	    part.setContributionURI("platform:/plugin/ch.inteco.wegas/ch.inteco.wegas.app.ProgramView");
	    
	    List<MPartStack> stacks = modelService.findElements(application, null, MPartStack.class, null);
	    stacks.get(1).getChildren().add(part);
	    partService.showPart(part, PartState.ACTIVATE);
    
	}