> For the complete documentation index, see [llms.txt](https://docs.selvette.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.selvette.com/shopify-app/add-inline-block.md).

# Add an inline app block

Use the **Try-On Widget** app block when you want it inside a particular product template, when a theme cannot use app embeds, or when you need a manual placement fallback.

![The Selvette inline app block placed in a Shopify product template](/files/ZisJS957Ks5neClIF0sW)

## Add the block

1. In Shopify admin, open **Online Store → Themes**.
2. Select **Customize** on the theme you want to edit.
3. Open a product template.
4. In the product-information section, select **Add block**.
5. Under **Apps**, select **Try-On Widget**.
6. Choose the button placement.
7. Complete the publishable key and widget URL fields shown by the block. Copy the values from Selvette's Widget settings; do not type them from memory.
8. Select **Save**.

{% hint style="warning" %}
The app block is a manual installation path. A missing key or script URL means the block cannot load. For Online Store 2.0 themes, the store-wide app embed is usually simpler.
{% endhint %}

Open a product using this template and follow [Complete your first try-on](/shopify-app/first-try-on.md).


---

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