@NotNull
  public static MergedHorizontalScrollBarModel create(@NotNull JScrollBar bar, @NotNull EditorEx first, @NotNull EditorEx second) {
    MergedHorizontalScrollBarModel model = new MergedHorizontalScrollBarModel(bar, first, second);
    bar.setModel(model);
    model.setEnabled(true);
    return model;
  }
@NotNull
  public static MergedHorizontalScrollBarModel create(@NotNull JScrollBar bar, @NotNull EditorEx first, @NotNull EditorEx second)