Thank you for the reply! The Feedback number ist FB14924996 @DTS Engineer Thanks for your input. I have a list-detail based app. To add more functionality I have tried a few things, including the new tab bar as it gives the user a lot of flexibility. I think this is hugely important, especially on the iPad, to give the apps there more power than just being inflated iPhone apps. As I don't think it works quite as well for the user, I will continue to try out other options, but I wouldn't rule out TabView in conjunction with NavigationSplitView completely. I see potential there.