How to set the Alias of Variant as product_alias + variant_alias automatically? I know there is a inputbox to write the alias; actually it fills up automatically when the value is not entered as an alias processed from the variant_title, but I would like that the alias be product_alias + variant_alias. For example: there is a variant called color blue for a product called tennis, then if the seller doesn't fill the field for the alias of the variant color blue, this field should be filled with the formula: product_alias + " " + variant_alias, this is: tennis-color-blue. Currently the alias filled by default is only the variant_alias, this is, in the previous example it would be only color-blue. Please help me to solve this, since this is very important to improve SEO.