i would like to add a flter on a product grid, if possible even with custom filters. https://www.weinamt.de/rotwein/
On this page for example, I would like to filter the products for certain tags or subcatagories.
You would better use the Product Tab element. The general tab provides the option to display products from one or more categories or from one or more tags. You can choose to display products either by category/categories or by tag/tags but not both.
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