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The top level of my app looks like:

struct MyApp: App {
    var body: some Scene {
        DocumentGroup(newDocument: MyDocument()) { file in
            MyContentView(document: file.$document)
        }
    }
}

How do I create a preview for it? #Preview expects a View, not a Scene. I can (and did) create a preview for MyContentView, but that does not show the extra line with the document title that DocumentGroup adds on top, so I cannot judge the overall layout properly.

To illustrate, here's a screen shot. The green area is what MyContentView would show. The red area is the document related line added by DocumentGroup that I currently cannot preview.

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    Scenes cannot be previewed, period. What "extra line" are you talking about? Commented Nov 19 at 13:28
  • @Sweeper, I've now edited my post to add a screen shot and explain better what I mean. Commented Nov 20 at 12:22

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