@Override
  public void setHideEmptyPackages(@NotNull String paneId, boolean hideEmptyPackages) {
    if (myHideEmptyMiddlePackages.isEnabled(paneId)) myHideEmptyMiddlePackages.setSelected(hideEmptyPackages);
  }
@Override
  public void setHideEmptyPackages(@NotNull String paneId, boolean hideEmptyPackages)