> For the complete documentation index, see [llms.txt](https://docs.acho.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.acho.io/app-builder/faq.md).

# FAQ

#### How to use dynamic value in text

You can use [Accessors](/app-builder/app-construction/accessors.md) to dynamically display values from [Query](/app-builder/app-construction/query.md). Within a Text or Rich Text element, use ${#query\_name} to access the query result data.

<figure><img src="/files/l5WMJ6J2WEY0SiyM27r1" alt=""><figcaption><p>An example that uses value from the 'monthly_metrics' query in rich text</p></figcaption></figure>

#### Text size and typography

You can edit the typography of each text element. Click the element you want to edit, within right panel, go to CSS-> Typography. Here you can set font size, color, and more.

See more detail at [Typography](/app-builder/app-construction/elements/css-styles/typography.md)

#### How to display single value

You can use [Accessors](/app-builder/app-construction/accessors.md) to dynamically display values from [Query](/app-builder/app-construction/query.md) or app data.&#x20;

#### Can I write code in action flow

Yes.&#x20;

#### Can I write custom data visualization code

How to na