@NotNull
  protected ActionGroup createActionGroup() {
    DefaultActionGroup result = new DefaultActionGroup();
    List<AnAction> sorters = getSortActions();
    if (!sorters.isEmpty()) {
      result.addAll(sorters);
      result.addSeparator();
    }

    addGroupByActions(result);

    result.addAll(getFilterActions());

    if (showScrollToFromSourceActions()) {
      result.addSeparator();
      result.addAll(addNavigationActions());
    }
    return result;
  }
@NotNull
  protected ActionGroup createActionGroup()