What I want to do is position the pop-up of these windows so that they appear above the main ContentView, while ensuring that the ContentView remains visible.
and they don’t pop up at once, so i wanna for exemple place them all above the main ContentView how can i do it?

so here is my code

main
struct Demo17App: App {
@Environment(.scenePhase) private var scenePhase

var body: some Scene {
    let viewModel = OptionsViewModel()

    WindowGroup {
        ContentView(viewModel: viewModel)
            .environmentObject(viewModel)
            
    }
    .windowStyle(.plain)

    WindowGroup(id: "firstWindow") {
        Text("Second Window Content [Information]")
            .frame(width: 300, height: 200)
            .background(Color.blue)
            .zIndex(100)
    }
    .handlesExternalEvents(matching: Set(arrayLiteral: "firstWindow"))
    .windowStyle(.plain)

    WindowGroup(id: "secondWindow") {
        VideoView()
            .zIndex(100)
        
    }
    .handlesExternalEvents(matching: Set(arrayLiteral: "secondWindow"))

    WindowGroup(id: "thirdWindow") {
        ImmersiveView()
            .zIndex(100)
    }
    .handlesExternalEvents(matching: Set(arrayLiteral: "thirdWindow"))
}

}
here is my code