> For the complete documentation index, see [llms.txt](https://help.smallbuilder.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.smallbuilder.com/smallbuilder-line-items/builder/builder-setup-steps/setup-lookup-selector/add-virtual-columns-for-datasource.md).

# Add Virtual Columns for DataSource

Create virtual columns to store temporary values for displaying data retrieved from a DataSource. Virtual columns can be added by clicking the Add Virtual Column button and support value types such as text, number, and currency.

{% hint style="warning" %}
Virtual columns are designed for use with DataSources. For more details, refer to the DataSource documentation.

Example of DataSource Usage >
{% endhint %}

<figure><img src="https://3800415611-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FNuSjRiJMvVhtdzNDzWBi%2Fuploads%2FBwMiLsNRiKnAdTWXS9N3%2FVitrual.png?alt=media&amp;token=eefc50b4-5f87-43b4-8be1-215d49c37c3b" alt=""><figcaption></figcaption></figure>