Product Variations.

Hi. I have many products that are variations. The variations that are used could be Size with options like 100x100cm, 200x200cm.

These options/variations where made in the product page adding a custom attribute that then is used in the variations tab. (So not making attributes through woocommerce > products> attributes.)

In the widget area it shows “filter product by” this only allows me to filter by attributes that are global. I want to populate the “Custom attributes” that were made a product level for product filter.

Maybe im missing something? Ive looked at plugins but doesnt seem to say it will work with customer attributes.