---
title: 'Shape grouping'
linkTitle: 'Shape grouping'
weight: 27
description: 'Grouping multiple shapes during annotation.'
---

This feature allows us to group several shapes.

You may use the `Group Shapes` button or shortcuts:

- `G` — start selection / end selection in group mode
- `Esc` — close group mode
- `Shift+G` — reset group for selected shapes

You may select shapes clicking on them or selecting an area.

Grouped shapes will have `group_id` filed in dumped annotation.

Also you may switch color distribution from an instance (default) to a group.
You have to switch `Color By Group` checkbox for that.

Shapes that don't have `group_id`, will be highlighted in white.

![Example of an annotation with grouped shapes](/images/image078_detrac.jpg)

![Example of an annotation with grouped and non-grouped shapes](/images/image077_detrac.jpg)

## Shapes grouping video tutorial

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<iframe width="560" height="315" src="https://www.youtube.com/embed/m8bB9f23wLs?si=N5EzIRG-1Wn6R15G" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" allowfullscreen></iframe>

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