protected void appendActions(@NotNull DefaultActionGroup actionGroup, @Nullable String helpID) {
    actionGroup.add(myAutoScrollToSourceHandler.createToggleAction());
    ActionManager actionManager = ActionManager.getInstance();
    actionGroup.add(actionManager.getAction(IdeActions.ACTION_EXPAND_ALL));
    actionGroup.add(actionManager.getAction(IdeActions.ACTION_COLLAPSE_ALL));
    actionGroup.add(actionManager.getAction(PinToolwindowTabAction.ACTION_NAME));
    actionGroup.add(CommonActionsManager.getInstance().createExportToTextFileAction(new ExporterToTextFileHierarchy(this)));
    actionGroup.add(new CloseAction());
  }
protected void appendActions(@NotNull DefaultActionGroup actionGroup, @Nullable String helpID)