Use Custom Block to change app’s widget position

Steps to manage

1. From your Shopify admin, go to Online Store > Themes.
2. Find the theme that you want to edit, and then click Customize.
3. Select the default Product detail page template from the drop-down menu.
   
4. Under the Template section in the left sidebar, Click Add block button.
5. Choose the “Custom Liquid” theme block type.
6. Add this div tag to the Custom Liquid box:

   <div class="gpo-product-variants"></div>

7. Drag & drop this new block to any position you want on the product detail page.
8. Click Save button to finish.