SwiftUI Toolbar and ControlGroup Actions

import SwiftUI

struct NoteEditor: View {
    var body: some View {
        TextEditor(text: .constant("Draft"))
            .navigationTitle("Note")
            .toolbar {
                ToolbarItem(placement: .topBarTrailing) {
                    ControlGroup {
                        Button("Undo", systemImage: "arrow.uturn.backward") {}
                        Button("Redo", systemImage: "arrow.uturn.forward") {}
                    }
                }

                ToolbarItem(placement: .keyboard) {
                    Button("Done") { hideKeyboard() }
                }
            }
    }
}