Version: 2021.1
The Game view
The Inspector window

La ventana de Hierarchy (Jerarquía)

The default Hierarchy window view when you open a new Unity project
The default Hierarchy window view when you open a new Unity project

The Hierarchy window displays every GameObject in a Scene, such as models, Cameras, or Prefabs. You can use the Hierarchy window to sort and group the GameObjects you use in a Scene. When you add or remove GameObjects in the Scene view, you also add or remove them from the Hierarchy window.

The Hierarchy window can also contain other Scenes, with each Scene containing their own GameObjects.

Parentesco (Parenting)

Unity uses the concept of parent-child hierarchies, or parenting, to group GameObjects. An object can contain other GameObjects that inherit its properties.You can link GameObjects together to help move, scale, or transform a collection of GameObjects. When you move the top-level object, or parent GameObject, you also move all child GameObjects.

You can also create nested parent-child GameObjects. All nested objects are still descendants of the original parent GameObject, or root GameObject.

Child GameObjects inherit the movement and rotation of the parent GameObject. To learn more about this, see documentation on the Transform component.

 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.
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.

Organizing GameObjects

Creating new GameObjects

To create a new GameObject in the Hierarchy window:

  1. Right-click on empty space in the selected Scene.
  2. Select the GameObject you want to create.

You can also press Ctrl+Shift+N (Windows) or Command+Shift+N (macOS) to create a new empty GameObject.

Note: New GameObjects are created in “rename” mode automatically. To disable this behavior, select the More (⋮) menu in the Hierarchy window and deselect Rename New Objects.

Toggling child GameObject visibility

To toggle the visibility of child GameObjects:

  1. Select the drop-down arrow (►) to the left of the parent GameObject.
  2. Press Alt while clicking the drop-down arrow (►) to toggle visibility of all descendant GameObjects of the root GameObject.
  3. Select the drop-down arrow again (▼) to collapse all descendant GameObjects.

Creating child GameObjects

To create a child GameObject:

  • Drag the GameObject onto the parent GameObject in the Hierarchy.
Drag Object 4 (selected) onto the parent GameObject, Object 1 (highlighted in a blue) to create a child GameObject.
Drag Object 4 (selected) onto the parent GameObject, Object 1 (highlighted in a blue) to create a child GameObject.

Creating parent GameObjects

You can add a new GameObject into the Hierarchy view 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 press Ctrl+Shift+G (Windows) or Command+Shift+G (macOS) to create a parent GameObject.

Note: If you have set a default parent GameObject, Create Empty Parent creates the new GameObject as a child of the default parent, not as the parent of the selected GameObjects.

Creating sibling GameObjects

A sibling GameObject is a GameObject with the same hierarchy as another child GameObject. To create a sibling GameObject:

  1. Drag the GameObject above or below an existing GameObject.
  2. Use the horizontal blue line to determine the order of the GameObject.
Drag Object 4 (selected) between Object 2 and Object 3 (indicated by the blue horizontal line), to create a sibling GameObject under the parent GameObject Object 1 (highlighted in a blue).
Drag Object 4 (selected) between Object 2 and Object 3 (indicated by the blue horizontal line), to create a sibling GameObject under the parent GameObject Object 1 (highlighted in a blue).

Duplicating GameObjects

To duplicate GameObjects, right-click the target GameObject and select Duplicate.

You can also press Ctrl+D (Windows) or Command+D (macOS) to duplicate the selected GameObject.

Pasting 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 (Windows) or Command+Shift+V (macOS) to paste a GameObject as a child.

Organizing GameObjects with default parent

You can make any GameObject in the Hierarchy window a “default parent”. When you drag a GameObject into the Scene view, Unity automatically makes this GameObject the child of the GameObject you set as the default parent.

To make a GameObject a default parent:

  1. In the Hierarchy window, right-click on the GameObject.
  2. Select Set as Default Parent.

When you drag a GameObject into the Scene view, in the Hierarchy window, the child GameObject is indented below the default parent GameObject. The name of the default parent GameObject is bold.

In this image, the Cube GameObject is the default parent. When the user drags the Car GameObject into the Scene view, Unity automatically makes it the child of the Cube GameObject.
In this image, the Cube GameObject is the default parent. When the user drags the Car GameObject into the Scene view, Unity automatically makes it the child of the Cube GameObject.

To remove default parent status from a GameObject:

  1. In the Hierarchy window, right-click on the GameObject.
  2. Select Clear Default Parent.

The name of the GameObject that was previously the default parent is no longer bold. When you drag a GameObject into the Scene view, it appears at the top level in the Hierarchy window. In other words, Unity does not make this GameObject the child of the GameObject that was previously the default parent.

In this image, no GameObjects in the Hierarchy window are set as the default parent. When the user drags the Car GameObject into the Scene view, Unity adds it at the top level of the hierarchy.
In this image, no GameObjects in the Hierarchy window are set as the default parent. When the user drags the Car GameObject into the Scene view, Unity adds it at the top level of the hierarchy.

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.

In this image, the Cube GameObjects in both Scene1 and Scene2 are set as default parents. Unity sets the Cube in Scene1 as the parent of the Car GameObject, because Scene1 is the active Scene.
In this image, the Cube GameObjects in both Scene1 and Scene2 are set as default parents. Unity sets the Cube in Scene1 as the parent of the Car GameObject, because Scene1 is the active Scene.

You can set a keyboard shortcut for the default parent setting in the Shortcuts manager. On the Shortcuts window, assign a keyboard shortcut to Hierarchy View > Set as Default Parent. If there is 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.

Setting Scene visibility and pickability

Click the Scene visibility icon to hide and show GameObjects in the Scene view without changing their in-application visibility.

Select the Scene picking icon to toggle the ability to select GameObjects in the Scene view while you are editing.

These controls are useful for working with large or complex Scenes where it’s difficult to view and select specific GameObjects.

Scene visibility icons/toggles
Scene visibility icons/toggles

For more information, see the documentation on Scene visibility and Scene picking.

Sorting GameObjects

By default, the Hierarchy window lists GameObjects in the order they’re created. You can drag the selected GameObject up or down in the Scene to change the order of the GameObjects.

Alphanumeric sorting

To sort GameObjects in alphanumeric order:

  1. Select Edit > Preferences (Windows) or Unity > Preferences (macOS).
  2. Select Enable Alphanumeric Sorting.

When selected, an icon appears in the Hierarchy window that allows you to toggle between Transform sorting (the default value) or Alphabetical sorting.

Multi-Scene editing (edición de varias escenas)

You can have more than one Scene open in the Hierarchy window at the same time. For more information, see the Multi Scene Editing page.


  • Toggling Scene visibility added in 2019.1 NewIn20191
  • Toggling Scene pickability added in 2019.3 NewIn20193
The Game view
The Inspector window
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