Hi, Florian. I sell products that are often the main subject of web pages related to either the objects themselves or their use. I have created a custom product attribute to hold the URL of the web page that has my product as its subject. I would like to put that into the global snippet for products. I have added a custom property (subjectOf) to the global snippet for the product; it takes a WebPage object, obviously. But when I go to the WebPage’s url property, the list of available field types does not include Woocommerce product attributes (as one of your how-tos indicates that it might). How should I go about doing this? It seems a perfectly reasonable thing to do….