# Using enumerations

Learn more about working with enumerations, which can be used to group values within a type.

## Overview

An enumeration is a predefined set of values that represents a list of possible options.

**Are you looking for our API Reference?:**

[Check out our API Reference document on enumerations](https://hygraph.com/classic-docs/api-reference/schema/enumerations)

## What you can do

- You can use enumerations to group values within a type.

- You can use enumerations to create a list of values, which can then be used when adding a Dropdown field to your models.

## Create an enumeration

Navigate to the **Schema** builder. On the screen, you can add an enumeration or use a demo one. We will show you both procedures.

![Create an enumeration](https://hygraph.com/images/classic-docs/user-guides/enumerations/enumerations-add-create.png)

## Add an enumeration

[Video](https://eu-central-1-shared-euc1-02.graphassets.com/AvHQ3RDvFSousA8iwElOKz/QHMQbopSiyQLDO3cmgAR)

1. Navigate to the **Schema** builder
2. You can create an enumeration by navigating to the Schema builder, locating enumerations on the Schema list, and then clicking on `+ Add` next to Enumerations on the Schema list, or the `+ Add Enumerations` button located at the center of the screen. The **Add enumeration screen** will display as a result.
3. Complete the `Display name` field with the name that will be displayed in Hygraph. The `API ID` field will be autocompleted when you complete the `Display name`, but you can edit this value. The API ID is the ID for accessing this enumeration through the API.
4. Optionally, you can add a `Description`.
5. Under enumeration values, you can add a list of values by manually entering the value names in the text field and then clicking on the `+ Add to list` button.
6. Once you have added all the enumeration values, click on the `Add Enumeration` button at the bottom of the screen to finish the process.

## Use demo enumeration

[Video](https://eu-central-1-shared-euc1-02.graphassets.com/AvHQ3RDvFSousA8iwElOKz/bWXoLGZQQ7exX51dikya)

1. Navigate to the **Schema** builder.
2. Click on the `Use demo enumeration` button, located at the center of the screen. The demo enumeration will be autogenerated as a result.
3. The enumeration details screen will be displayed, where all the data will already be complete. You can edit this information.

## Delete an enumeration

[Video](https://eu-central-1-shared-euc1-02.graphassets.com/AvHQ3RDvFSousA8iwElOKz/Tgt8SVvTQOmYRYMAXwYF)

1. Navigate to the **Schema** builder.
2. Click on the enumeration you want to delete.
3. Click on the three dots icon to display the `Delete` option, then click on it to delete the enumeration.

## Use an enumeration in a model

[Video](https://eu-central-1-shared-euc1-02.graphassets.com/AvHQ3RDvFSousA8iwElOKz/uTCUjPVxQNCM0L1Eldet)

1. Navigate to the **Schema** builder.
2. Click on the model you wish to add the enumeration to.
3. Select the **Dropdown** field under **Enumerations** from the **Add fields** right sidebar.
4. Complete the `Display name` field, and the `API ID` will be auto-filled by the system.
5. Use the `Enumerations` dropdown to select the enumeration you wish to add to this model.
6. Optionally, you can also add a `Description`.
7. This screen allows you to control different properties of your **Dropdown** field: you can allow multiple values, localize the field, or use it as title field, by selecting the checkboxes under the `Field options` section of the screen.
8. Click on the `Add` button. Your dropdown field will be added on the model as a result.

After an enumeration has been configured for your model, you will be able to use the dropdown in the content editor.

![Use an enumeration in a content entry](https://hygraph.com/images/classic-docs/user-guides/enumerations/enumerations-use-in-content.png)