> ## Documentation Index
> Fetch the complete documentation index at: https://docs.oviond.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Duplicate custom data

> Copy a dataset under a new name.

Duplicating clones a dataset — its rows, columns, and metadata — under a new name. It's useful for:

* Creating a variant before applying different transformations downstream
* Forking a dataset before a risky edit, so you can compare side by side
* Spinning up test data from a verified dataset

<Steps>
  <Step title="Open Manage Custom Data">
    From the **Data Query** widget's **Custom Data** source, click **Manage** next to the **Dataset** label.
  </Step>

  <Step title="Choose Duplicate">
    Select the dataset and choose **Duplicate**.
  </Step>

  <Step title="Name the copy">
    Enter a name for the new dataset. The copy is created with that name.
  </Step>
</Steps>

<Note>
  Widgets continue pointing at the original dataset — duplicating doesn't re-wire anything. To point a widget at the copy, open the widget and select the new dataset.
</Note>

## API

`POST /v1/custom-data/{id}/duplicate` clones the source dataset. Send `new_name` for the copy. The response returns the new dataset `id`.