electrondensity = Import("watermolecule");
electrondensity = Partition(electrondensity);
camera = AutoCamera(electrondensity);
iso1 = Isosurface(electrondensity,0.2);
iso2 = Isosurface(electrondensity,0.3);
collected = CollectNamed(iso1,"first isosurface",iso2, "second isosurface");
selected = Select(collected,"second isosurface");
Display(selected,camera);
