How to create 2 overlay service at the same time?

[lkc33]

Hi,
Hi, i m new to flutter and overlay service? How to create 2 overlay services at the same time? can we add this to manifest

    and any way to add this ?
    Future<void> startOverlay1() async {

await PlatformChannels.platform.invokeMethod('startService', 'com.example.flutter_overlay_window_example.OverlayService');
}

Future startOverlay2() async {
await PlatformChannels.platform.invokeMethod('startService', 'com.example.flutter_overlay_window_example.OverlayService2');
}

thanks