How can i make app for Z flip cover display?

I want to make an app which only work on z flip cover display. (z flip 3 ~ 4)
I also want to make app like that if user open app on main display the app, which shows app settings.
How can i set app like that?

There might be an extension which is able to identify the device… you might want to do a search in the extensions directory App Inventor Extensions | Pura Vida Apps

I’m not sure if I understood the 2nd question. . To open the settings use the activity starter…