# Installing Infinite Options on 2.0 Theme
Before Infinite Options can display custom fields on your product pages, you must add the **Infinite Options Fields** block to your theme.
This only needs to be done once per theme.
{% hint style="info" %}
If you switch or publish a new theme in the future, you will need to repeat these steps.
{% endhint %}
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### Step 1: Open the Theme Editor
From your Shopify admin:
1. Go to **Online Store → Themes**
2. Click **Customize** next to your active theme
### Step 2: Open a Product Template
At the top of the theme editor:
1. Click the dropdown menu
2. Select **Products**
3. Choose your product template\
Most stores use the **Default product** template
This template controls how your product pages display.
### Step 3: Add the Infinite Options Block
In the left sidebar:
1. Locate the section that contains your product title, price, and variant selector
2. Click **Add block**
3. Select **Infinite Options Fields** from the **Apps** tab
If you do not see the Infinite Options block, your theme is not a Shopify 2.0 theme.
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### Step 4: Position the Block
Drag the **Infinite Options Fields** block to where you want your options to appear.
Most merchants place it:
* Below the variant selector
* Above the quantity selector
* Above the Add to Cart button
You can adjust the placement at any time.
***
### Step 5: Save
Click **Save** in the top right corner.
Infinite Options is now installed on your theme.
You can begin creating Option Sets inside the app.
### Adding Additional Pricing?
If you plan to charge for options using **Native Bundling** or **Product Bundles**, you may also need to add the [**Dynamic Bundle Price**](https://shoppad.gitbook.io/infinite-options/increase-the-cost-of-an-option/show-price-changes-on-the-product-page) block so the product price updates when paid options are selected.
You can add it in the same product template by clicking **Add block → Dynamic Bundle Price**.
