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# UISceneCollectionJoinBehavior.preferredWithoutActivating

A behavior that adds the new scene to the requesting scene’s collection without activating it, or attempts to join a compatible collection.

```
case preferredWithoutActivating
```

## Discussion

If [`requestingScene`](/documentation/UIKit/UIScene/ActivationRequestOptions/requestingScene) is set, this behavior adds the new scene without deactivating the [`requestingScene`](/documentation/UIKit/UIScene/ActivationRequestOptions/requestingScene). Otherwise, this behavior behaves the same as [`UISceneCollectionJoinBehavior.preferred`](/documentation/UIKit/UISceneCollectionJoinBehavior/preferred). For example, in apps built with Mac Catalyst, you can use this behavior to open a link in a new tab in the background.

---

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