diff --git a/README.md b/README.md
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+++ b/README.md
@@ -21,6 +21,7 @@ our [academy](https://bitbag.io/pl/akademia?utm_source=github&utm_medium=url&utm
 ***
 
 * [Overview](#overview)
+* [Functionalities](doc/functionalities.md)
 * [Installation](#installation)
 * [Support](#support)
 * [About us](#about-us)
diff --git a/doc/functionalities.md b/doc/functionalities.md
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+# Functionalities
+
+---
+## Introduction
+
+---
+SyliusProductAttributeGroupsPlugin allows you to group your attributes and attach them grouped to the products.
+
+## Usage
+If you need to add multiple sets of the same attributes to your products, you do not need to add them individually each time.
+It is possible to create an attribute group, which allows attributes from the group to be added to a product in one click.
+
+---
+### Adding attribute group
+
+Selectable list of attribute groups:
+<div align="center">
+    <img src="./images/attribute_group.png"/>
+</div>
+<br>
+
+Adding new group:
+<div align="center">
+    <img src="./images/new_attribute_group.png"/>
+</div>
+<br>
+
+
+### Adding an attribute group to a product
+Once a group of attributes has been added, go to the "attributes" tab on the add or edit product page. <br>
+Then select the relevant product group.
+
+<div align="center">
+    <img src="./images/adding_attributes.png"/>
+</div>
+<br>
+
+Group attribute tags should appear in the form on the left. When you click on the 'Add attributes' button, new forms will be added.
+<div align="center">
+    <img src="./images/adding_attributes_added.png"/>
+</div>
+<br>
+
+Now it is just a matter of completing the forms and saving the changes.
+<div align="center">
+    <img src="./images/adding_attributes_added_2.png"/>
+</div>
+<br>
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