# accessoryBar(id:) Creates a unique accessory bar placement. ``` @backDeployed(before: macOS 14.0) static func accessoryBar(id: ID) -> ToolbarPlacement where ID : Hashable ``` ## Parameters `id` A unique identifier for this placement. ## Discussion On macOS, accessory bars are in a section below the title bar and toolbar area of the window. Each separate identifier will correspond to a separate accessory bar that is added to this area. Use a custom placement to control the appearance of the containing bar for items using a custom [`ToolbarItemPlacement`](/documentation/SwiftUI/ToolbarItemPlacement) with the same identifier. ``` private let favoritesBarID = "com.example.favoritesBar" extension ToolbarItemPlacement { static let favoritesBar = accessoryBar(id: favoritesBarID) } extension ToolbarPlacement { static let favoritesBar = accessoryBar(id: favoritesBarID) } ... BrowserView() .toolbar { ToolbarItem(placement: .favoritesBar) { FavoritesBar() } } .toolbar(.hidden, for: .favoritesBar) ``` --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)