bottom navigation bar: Navigate back to nav bar item from any screen in the app / Navigator.pushNamed instead of creating an object instance flutter

Question

I would like to use Navigator.pushNamed(context, '/route-name'); instead of creating an object instance. I'm trying to get back to a single instance of the called screen from multiple screens of the app. Is there any other way to make this possible? Thx for help!

I would like to replace the widget list with navigator routes instances so i can navigate back to my screen from any place in the app. Code below:

class _NavigationWrapperState extends State<NavigationWrapper> {
  var bottomWidgetKey = GlobalKey<State<BottomNavigationBar>>();

  int _index = 0;


  List<Widget> widgets = [
    MyIssuesOverview(),
    ProjectOverview(),
    DashboardWrapper(),
    SettingsScreen(),
  ];

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      key: bottomWidgetKey,
      body: widgets.elementAt(_index),
      bottomNavigationBar: BottomNavigationBar(
        selectedItemColor: Colors.blue,
        unselectedItemColor: Colors.grey,
        onTap: (int idx) => {
          setState(() {
            _index = idx;
          }),
        },
        currentIndex: _index,
        items: [
          BottomNavigationBarItem(label: "Home", icon: Icon(Icons.home)),
          BottomNavigationBarItem(label: "Projects", icon: Icon(Icons.topic)),
          BottomNavigationBarItem(
            label: "Dashboard",
            icon: Icon(Icons.add_chart),
          ),
          BottomNavigationBarItem(
            label: "Timer",
            icon: Icon(Icons.lock_clock),
          ),
          BottomNavigationBarItem(
            label: "Settings",
            icon: Icon(Icons.settings),
          )
        ],
      ),
    );
  }
}