cvat/site/content/en/docs/manual/basics/CVAT-annotation-Interface/objects-sidebar.md

---
title: 'Objects sidebar'
linkTitle: 'Objects sidebar'
weight: 11
description: ' Displays annotated objects and includes a label filter, lists of objects (current frame) and labels (objects on the frame), and appearance settings. '
---

In the objects sidebar, you can see the list of available objects on the current
frame. The following figure is an example of how the list might look like:

| Shape mode                | Track mode                |
| ------------------------- | ------------------------- |
| ![Objects sidebar in shape mode](/images/image044.jpg) | ![Objects sidebar in track mode](/images/image045.jpg) |

## Objects properties

**Filter** input box

![Filter button](/images/image059.jpg)

The way how to use filters is described in the advanced guide {{< ilink "/docs/manual/advanced/filter" "here" >}}.

**List of objects**

![Managing objects panel with marked buttons and menus](/images/image147.jpg)

- Switch lock property for all - switches lock property of all objects in the frame.
- Switch hidden property for all - switches hide the property of all objects in the frame.
- Expand/collapse all - collapses/expands the details field of all objects in the frame.
- Sorting - sort the list of objects: updated time, ID - accent, ID - descent

---

**Objects** on the sidebar

The type of shape can be changed by selecting the **Label** property.
For instance, it can look like shown in the figure below:

![Opened drop-down menu with options to select label property](/images/image050.jpg)

**Object action menu**

The action menu calls up the button:

![Opened action menu for an object](/images/image047.jpg)

The action menu contains:

- **Create object URL** - puts a link to an object on the clipboard.
  After you open the link, this object will be filtered.
- **Make a copy** - copies an object. The keyboard shortcut is **Ctrl** + **C** > **Ctrl** + **V**.
- **Propagate** function copies the form to multiple frames
  and displays a dialog box where you can specify the number
  of copies or the frame to which you want to copy the object.
  The keyboard shortcut is **Ctr**l + **B**. On how to propagate
  only filtered shapes, see {{< ilink "/docs/enterprise/shapes-converter" "Shapes converter" >}}<br>There are two options available:

  - **Propagate forward** (![Fw propagate](/images/propagate_fw.png)) creates a
    copy of the object on `N` _subsequent_ frames at the same position.
  - **Propagate backward** (![Back propagate](/images/propagate_back.png)) creates
    a copy of the object on `N` _previous_ frames at the same position.

  ![Window with options and parameters for object propagation](/images/image053.jpg)

- **To background** - moves the object to the background. The keyboard shortcut **-** or **\_**
- **To foreground** - moves the object to the foreground. The keyboard shortcut **+** or **=**
- **Change instance color**- choosing a color using the color picker (available only in instance mode).

  ![Object's action menu with "Change instance color" option and a color picker](/images/image153.jpg)

- **Remove** - removes the object. The keyboard shortcut **Del**, **Shift+Del**.

A shape can be locked to prevent its modification or moving by an accident. Shortcut to lock an object: **L**.

![Objects sidebar with highlighted button for locking shape](/images/image046.jpg)

A shape can be **Occluded**. Shortcut: **Q**. Such shapes have dashed boundaries.

![Objects sidebar with highlighted button for occluding shape](/images/image048.jpg)

![Example of an annotation with an occluded shape](/images/image049_detrac.jpg)

You can change the way an object is displayed on a frame (show or hide).

![Objects sidebar with highlighted button for object visibility](/images/image055.jpg)

**Switch pinned property** - when enabled, a shape cannot be moved by dragging or dropping.

![Objects sidebar with highlighted button for pinning object](/images/image052.jpg)

**Tracker switcher** - enable/disable {{< ilink "/docs/manual/advanced/ai-tools#trackers" "tracking" >}} for the object.

![Objects sidebar with highlighted button for tracking](/images/tracker_switcher.png)

By clicking on the **Details** button you can collapse or expand the field with all the attributes of the object.

![Objects sidebar with opened menu for object attributes](/images/image154.jpg)

---

## Labels

In this tab, you can lock or hide objects of a certain label.
To change the color for a specific label,
you need to go to the task page and select the color by clicking the edit button,
this way you will change the label color for all jobs in the task.

![Example of "Labels" tab](/images/image062.jpg)

**Fast label change**

You can change the label of an object using hotkeys.
In order to do it, you need to assign a number (from 0 to 9) to labels.
By default numbers 1,2...0 are assigned to the first ten labels.
To assign a number, click on the button placed at the right of a label name on the sidebar.

![Example of shortcuts for fast label change](/images/image210.jpg)

After that, you will be able to assign a corresponding label to an object
by hovering your mouse cursor over it and pressing **Ctrl** + **Num(0..9)**.

In case you do not point the cursor to the object, pressing **Ctrl** + **Num(0..9)** will set a chosen label as default,
so that the next object you create (use the `N` key) will automatically have this label assigned.

![Message about the default label change](/images/image211.jpg)

---

## Appearance

**Color By** options

Change the color scheme of the annotation:

- `Instance` — every shape has a random color

  ![Example of an annotation with color per instance setting applied](/images/image095_detrac.jpg)

- `Group` — every group of shape has its own random color, ungrouped shapes are white

  ![Example of an annotation with color per group setting applied](/images/image094_detrac.jpg)

- `Label` — every label (e.g. car, person) has its own random color

  ![Example of an annotation with color per label setting applied](/images/image093_detrac.jpg)

  You can change any random color pointing to a needed box on a frame or on an
  object sidebar.

**Fill Opacity** slider

Change the opacity of every shape in the annotation.

![Example of "Fill opacity" setting applied](/images/image086_detrac.jpg)

**Selected Fill Opacity** slider

Change the opacity of the selected object's fill. It is possible
to change the opacity while drawing an object in the case
of rectangles, polygons, and cuboids.

![Example of "Selected fill opacity" settings applied](/images/image089_detrac.jpg)

**Outlined borders** checkbox

You can change a special shape border color by clicking on the **Eyedropper** icon.

![Example of "Outlined borders" settings applied](/images/image088_detrac.jpg)

**Show bitmap** checkbox

If enabled all shapes are displayed in white and the background is black.

![Example of "Show bitmap" setting applied](/images/image087_detrac.jpg)

**Show projections** checkbox

Enables/disables the display of auxiliary perspective lines. Only relevant for cuboids

![Example of "Show projections" setting applied](/images/image090_detrac.jpg)

## Hide objects sidebar

**Hide** - the button hides the object's sidebar.

![User interface with highlighted button for hiding objects sidebar](/images/image146.jpg)