I am using Prestashop version 1.6 and I have some products that have custom features values. By default, Prestashop doesn't display them in the filter of Layered Navigation Block plugin, it only displays the pre-defined values in the filter results.
How can I include the custom feature values onto the filter results? Or maybe a way to transfer the custom features in the database to pre-defined values?
You can transform your custom values to pre-defined values by setting the field custom to 0 in table feature_value for the needed values.