available_sort_by

The available_sort_by defines which options/parameters to shoud be displayed in the “sort by” (default_sort_by) field on the category page. You can find the field in magento under the section Catalog > Manage Categories > Display Settings.

– Alphanumeric
– Vaues: i.e. position, name, price, …
– Can be overwritten in STORE VIEW
– Required