@Override
    public void initTabContent(@NotNull Content content) {
      ChangesViewManager viewManager = (ChangesViewManager)getInstance(myProject);
      ChangesViewToolWindowPanel panel = viewManager.initToolWindowPanel();

      content.setHelpId(ChangesListView.HELP_ID);
      content.setComponent(panel);
      content.setPreferredFocusableComponent(panel.myView);
    }
@Override
    public void initTabContent(@NotNull Content content)