> 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-line-item-editor/add-columns.md).
# Add Columns
Configure the fields (columns) to be displayed and worked on in the Line Item Editor.
{% hint style="warning" %}
Pre-added lookup reference fields cannot be deleted. If you do not wish to display these fields in the Line Item Editor, check the “Hide” option to conceal them.\
{% endhint %}
{% hint style="danger" %}
**Field-Level Security (FLS) is not currently enforced.** If a user lacks permissions for a specific field, errors may occur. This limitation will be addressed in future updates.
{% endhint %}
### Steps to Add Columns
In the **Line Item Editor Setup** step, click the **Add Columns** button.
### Example: Adding Columns
{% endhint %}
{% hint style="danger" %}
**Field-Level Security (FLS) is not currently enforced.** If a user lacks permissions for a specific field, errors may occur. This limitation will be addressed in future updates.
{% endhint %}
### Steps to Add Columns
In the **Line Item Editor Setup** step, click the **Add Columns** button.
