The Product Metafield element is a mini element which shows the metafield information for a product on your page.
Note: The Product Metafield element is only available for Shopify, you can follow this article to add a metafield for a product.
Note: The Product Metafield element needs to be inside a Product element, so in order to use it, you need first to insert a Product element into the page.
You can find and insert a Product Metafield element from the sidebar.
This is how the Product Metafield element looks inside the Editor
Product: Select the product to show.
Namespace and key: The namespace and key of the metafield, as defined in Shopify Admin. For example my_namespace.my_key