# Manage GameObjects in the Hierarchy window > Use the Hierarchy window to create and organize GameObjects and control their visibility in a scene. Use the **Hierarchy** window to create and organize GameObjects and control their visibility in a scene. The **Hierarchy** window displays every [GameObject](/engine/6000.5/manual/working-with-gameobjects/game-objects.md.md) in a scene, including models, cameras, and [prefabs](/engine/6000.5/manual/working-with-gameobjects/prefabs.md.md). You can use the **Hierarchy** window to manage and group the GameObjects you use in a scene. When you add or remove GameObjects in the Editor view, you also add or remove them from the **Hierarchy** window. **The default Hierarchy window when you open a new Unity project:** ![](/api/media?file=/engine/6000.5/media/images/hierarchy-window.png) The **Hierarchy** window can also display other scenes, with each scene containing its own GameObjects. You can have more than one scene open in the **Hierarchy** window at the same time. For more information, refer to [Work with multiple scenes in Unity](/engine/6000.5/manual/working-with-scenes/multi-scene-editing.md). ## Create a new GameObject To create a new GameObject in the **Hierarchy** window: 1. Right-click on empty space in the **Hierarchy** window under your selected scene. 2. Select the GameObject you want to create from the context menu. You can also use the keyboard shortcut **Ctrl**+**Shift**+**N** (macOS: **Cmd**+**Shift**+**N**) to create a new empty GameObject. > **Note:** > > By default, Unity creates new GameObjects in rename mode. To disable this behavior, open the **More** (**⋮**) menu in the **Hierarchy** window and deselect **Rename New Objects**. ## Duplicate a GameObject To duplicate a GameObject, right-click the target GameObject and select **Duplicate**. You can also use the keyboard shortcut **Ctrl**+**D** (macOS: **Cmd**+**D**) to duplicate the selected GameObject. ## Reorder items in the Hierarchy window By default, the **Hierarchy** window lists GameObjects by order of creation, with the most recently created GameObjects at the bottom. You can reorder the GameObjects by dragging them up or down. ## Group items using parenting Unity uses the concept of parent-child hierarchies, or parenting, to group GameObjects. A GameObject can contain other GameObjects that inherit some of its properties. Child GameObjects inherit the movement and rotation of the parent GameObject. To learn more, refer to [Transform component](/engine/6000.5/manual/working-with-gameobjects/gameobject-fundamentals/class-transform.md). You can link GameObjects together to help move, scale, or transform a collection of GameObjects. When you move the top-level GameObject, or parent GameObject, you also move all child GameObjects. To group items into a parent-child hierarchy, select the child object and drag it onto the parent object. To ungroup items, select the child object and drag it to a different position in the **Hierarchy** window. You can also create nested parent-child GameObjects. All nested objects are still descendants of the original parent GameObject, or root GameObject. To set parent-child relationships in a C# script, use the [`Transform.SetParent`](/engine/6000.5/script-reference/unityengine/transform/setparent.md) method or the [`Transform.parent`](/engine/6000.5/script-reference/unityengine/transform/parent.md) property of the child GameObject. **Child 1 and Child 2 are the child GameObjects of Parent. Child 3 is a child GameObject of Child 2, and a descendant GameObject of Parent.:** ![](/api/media?file=/engine/6000.5/media/images/parenting-in-hierarchy-window.png) ### Create a child GameObject To create a child GameObject, drag it onto another GameObject in the **Hierarchy** window. ### Paste GameObjects as child You can cut or copy a selected GameObject and then paste it as a child of another GameObject. Pasted child GameObjects keep their world position. To paste a GameObject as child: 1. Right-click the selected GameObject, and then select **Cut** or **Copy**. 2. Right-click the intended parent GameObject, and then select **Paste as Child**. You can also press **Ctrl**+**Shift**+**V** (macOS: **Cmd**+**Shift**+**V**) to paste a GameObject as a child. ### Create a parent GameObject You can add a new GameObject into the **Hierarchy** window as the parent of existing GameObjects. To create a parent GameObject: 1. Right-click a GameObject, or select multiple GameObjects on the same level and right-click. 2. Select **Create Empty Parent**. You can also use the keyboard shortcut **Ctrl**+**Shift**+**G** (macOS: **Cmd**+**Shift**+**G**) to create a parent GameObject when you have selected a GameObject. ## Show or hide child GameObjects in the Hierarchy window In the **Hierarchy** window, you can toggle the visibility of child GameObjects in the following ways: * Select the foldout arrow (►) to the left of the parent GameObject to expand it. * Hold **Alt** while clicking the foldout arrow (►) to toggle visibility of all descendant GameObjects of the root GameObject. * Select the drop-down arrow (▼) to collapse all descendant GameObjects. ## Organize GameObjects with default parent You can make any GameObject in the **Hierarchy** window the default parent. When you create a new GameObject, or drag a GameObject into the Editor view, Unity automatically makes this GameObject a child of the default parent GameObject. To set a GameObject as the default parent: 1. In the **Hierarchy** window, right-click on the GameObject. 2. Select **Set as Default Parent**. The name of the default parent GameObject in the **Hierarchy** window is bold. To remove default parent status from a GameObject: 1. In the **Hierarchy** window, right-click on the GameObject. 2. Select **Clear Default Parent**. You can only set one default parent per scene. In the **Hierarchy** window, if you set a GameObject as the default parent, and then you make a different GameObject in the same scene the default parent, only the second GameObject is the default parent. If you have multiple scenes in the **Hierarchy** window, and you set default parents in each scene, when you drag a GameObject into the **Scene** view, Unity makes the default parent GameObject in the active scene the parent of the new GameObject. You can set a keyboard shortcut for the default parent setting in the [Shortcuts manager](/engine/6000.5/manual/unity-editor/editor-navigating-managing/shortcuts-manager.md). On the Shortcuts window, assign a keyboard shortcut to **Hierarchy View** > **Set as Default Parent**. If there's no default parent set, and in the **Hierarchy** window you select a GameObject, use the shortcut to make this GameObject the default parent. When a default parent is set, use the shortcut to remove default parent status from any GameObject that has it. ## Set Scene visibility and pickability If you have a scene with many GameObjects, it can be difficult to find and select specific GameObjects in the [**Scene** view](/engine/6000.5/manual/unity-editor/editor-windows-views-reference/using-the-scene-view.md). To clear the **Scene** view without impacting the visibility or behavior of GameObjects in the game, you can toggle the visibility and pickability of GameObjects from the **Hierarchy** window: * To hide and show the GameObject, select **Scene visibility** (eye icon). * To toggle the GameObject's pickability, select **Scene picking** (hand icon). > **Note:** > > If you select multiple GameObjects, press **H** to hide and show them, and **L** to toggle their pickability. For more information, refer to [Scene visibility](/engine/6000.5/manual/working-with-scenes/scenes-manage-gameobjects/scene-visibility.md) and [Scene picking](/engine/6000.5/manual/working-with-scenes/scenes-manage-gameobjects/scene-picking.md). ## Additional resources * [Hierarchy window reference](/engine/6000.5/manual/unity-editor/editor-windows-views-reference/hierarchy-window/hierarchy-reference.md) * [GameObject class](/engine/6000.5/manual/working-with-gameobjects/gameobject-fundamentals/class-game-object.md) * [Scene view](/engine/6000.5/manual/unity-editor/editor-windows-views-reference/using-the-scene-view.md) * [Inspector window](/engine/6000.5/manual/unity-editor/editor-windows-views-reference/using-the-inspector.md)