Custom "Sort By" -- how do I do this?

I need to set up a custom “sort by” option. Right now there’s Default, Name, Price, Popularity, and Bestselling. I want to add, and make the default sort “Square Feet: Least to Greatest” and add “Square Feet: Greatest to Least”, or at least have the option to sort by square feet.

How would I do this?

Thanks in advance.

You could use Product Features or Product Filters. Like the Pricing Brackets in the demo (

More info on both here:

Product Features: [url]CS-Cart Documentation — CS-Cart 4.15.x documentation

Product Filters: [url]CS-Cart Documentation — CS-Cart 4.15.x documentation

There is also more info in the Manual ([url]CS-Cart Documentation — CS-Cart 4.15.x documentation) starting on page 105.

Hope that helps.