# Select Columns
In this document, you will explore how to select columns in Astera Dataprep. Selecting columns is useful when you want to limit your dataset to only the relevant fields for analysis, transformation, or export.
1. To select columns in Astera Dataprep, click on the *Layout* option in the toolbar and select the *Select Columns* option from the drop-down.
2. Once selected, the *Recipe Configuration – Select Columns* panel will open.
3. Use the *Column Name(s)* drop-down to choose the columns that you want to include.
4. Once done, click on  *Apply*. The Grid will now display only the selected columns.
---
# Agent Instructions: Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.
Perform an HTTP GET request on the current page URL with the `ask` query parameter:
```
GET https://documentation.astera.com/dataprep/layout/select-columns.md?ask=
```
The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.
Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.