# Header bar

In the header bar of the interface, you have access to multiple options. On the left side, you will see your project name, which can be selected with a simple click on the disk button. To the right, there are options to completely mute/unmute audio/video across all tracks and to display guidelines for screen configuration. On the very right, you will find the application's menu.\ <br>

<figure><img src="/files/456p9LoGrtmJRHzGg0gl" alt=""><figcaption><p>Explay Header</p></figcaption></figure>


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# 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://docs.exaplay.one/ui/header-bar.md?ask=<question>
```

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.