> 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/ko/smallbuilder-line-items/builder/builder-setup-steps/setup-lookup-selector/add-columns.md).

# 열 추가하기

조회 선택기에 표시할 필드(열)을 설정합니다. 또한, [데이터소스](/ko/smallbuilder-line-items/builder/datasource.md)에서 가져온 데이터를 표시하기 위해 가상 열을 추가할 수 있습니다.

{% hint style="danger" %}
현재 **필드 보안 수준(Field-Level Security)에 따라 필드가 제어되지 않습니다.** 사용자가 해당 필드에 대한 권한이 없을 경우, 오류가 발생합니다. 추후에 개선될 예정입니다.
{% endhint %}

### 설정 방법

조회 선택기 설정 단계에서 **열 추가** 버튼을 클릭하여 조회 선택기에 표시할 필드를 선택합니다.

<figure><img src="/files/OBMVQe4aQa6KxPS2g953" alt=""><figcaption></figcaption></figure>

#### 열 추가 예시

<figure><img src="/files/aqk8Ed6demCy9529R2yR" alt=""><figcaption></figcaption></figure>


---

# Agent Instructions
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## Querying This Documentation
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```

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