# Editing blocks

In general, it's a good idea to add good metadata to your blocks, especially if your content is public. 

### Updating titles and descriptions

To update the title or the description of a block, open it up in the full lightbox view and click on the portion of the metadata that you'd like to update.

<figure><img src="/files/eWX5sdZbNJAeEfIeA5FT" alt=""><figcaption></figcaption></figure>

### Updating the block thumbnail (Premium only)

For blocks that are links (to webpages, or embeddable media link YouTube, Vimeo, Soundcloud etc) or files (PDFs, .mp3s, etc) you can manually update the thumbnail representation.

{% embed url="<https://vimeo.com/1068205922>" %}


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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://help.are.na/docs/getting-started/blocks/editing-blocks.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.