I have to produce number of labels and I have few objects which I use on different group of labels. So I thought about creating the first label with all objects and then to Save As the label for another version which might need the other object. With hiding labels I could have all objects present in all files and keep them turning on and off depends on the label I have to create. Anyway, I kept them in hidden layer instead and added another, visible layer, where I move the object I need for that particular label.