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# isOverviewVisible

A Boolean value indicating if the tab overview is currently displayed.

```
var isOverviewVisible: Bool { get set }
```

## Discussion

The tab overview provides a visual overview of the windows that make up a tabbing group. This property indicates whether the tab overview is currently displayed. Setting the property either shows or hides the overview.

You can monitor this property for changes using key-value observing.

## See Also

[`func toggleTabOverview(Any?)`](/documentation/AppKit/NSWindow/toggleTabOverview(_:))

Shows or hides the tab overview.


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