Force position change of the document edit menu in Document based app on SwiftUI

How can I make this appear inside the NavigationSplitView toolbar? It doubles up with the close button and takes up space...

App Main view

import SwiftUI

@main
struct WritingApp: App
{
    var body: some Scene
    {
        DocumentGroup(newDocument: WritingAppDocument())
        { file in
            StoryView(document: file.$document)
        }
    }
}

Story view

import SwiftUI

struct StoryView: View
{
    @Binding var document: WritingAppDocument
    @State private var isShowingSheet = false
    @FocusState private var isFocused: Bool
    
    var body: some View
    {
        NavigationSplitView
        {
            Text("Sidebar")
        }
        detail:
        {
            HStack
            {
                Text("Detail View")
            }
            .toolbar
            {
                ToolbarItem
                {
                    Button("Book", systemImage: "book")
                    {
                        
                    }
                }
                
                ToolbarItem
                {
                    Button("Circle", systemImage: "circle")
                    {
                        
                    }
                }
            }
        }
    }
}