Click here to see the demo of using Attributes as Taxonomy Keyword for Filter.
First, create column using attributes.
I have added to attributes color and size which slug or name is pa_color and pa_size
Click on Update/Publish
Now go to Search Box and Filter tab. Enable Advanced Search Box if not showing advanced search box in the front.
Now type the attributes name into Taxonomy Keyword for Advanced Search Box
Click on Update. Now you can see the filter options for attributes in the front.
