UI Navigation
Luna UI provides utilities to automatically disable unrelated interactable elements using the LunaUIManager, enabling Unity's auto navigation to function without manual setup.
See the Disable Other Views On FadeIn field in UIView or UIViewComponent.
Auto Navigation
Each UI Toolkit panel features a focus ring that determines the focus order of elements. You can learn more about this feature here:
Unity: Dispatch EventsChange what element is focused next
You can manually determine what element is focused next.