> For the complete documentation index, see [llms.txt](https://docs.proxyman.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.proxyman.com/basic-features/custom-header-column.md).
# Custom Header Column
How to create a Column from your Request/Response Headers, Query, and JSON Body
## 1. What's it?
Custom Header Column feature allows you to customize the column that displays on the main Table View. It's similar to Custom Header Column from [Google Chrome Dev Tools](https://developers.google.com/web/tools/chrome-devtools/network/reference#custom-columns)
## 2. Benefit
* Define a Header from Request/Response and show it on the table.
* **Easier to distinguish each request/response if they have the same URL, but different Headers**
* Support resize/sorting/reorder columns
* Remember the previous state and restore it for the future session.
## 3. Custom Column
You can create a custom column from the following items:
* ✅ Request Response Header, e.g. Content-Type, X-Key, ...
* ✅ Query, e.g. name, id, ...
* ✅ JSON Body with jq or JSON Path, e.g. $.data.user.name
## 3. How to use it?
1. **Tools Menu** -> **Custom Header Column**
2. Click on the + button on the Request or Response Panel
3. Create new column from Header or Query or JSON Body
Follow this documentation to understand how to use JSON Path or jq to query data from your JSON Data
* [**JSON Path**](/basic-features/jsonpaths.md)
* [**jq**](/basic-features/jq.md)
## **4. Built-in GraphQL Query Column**
Custom Header Column would extract and display the query name for GraphQL Request.
