Sort by option on every category page has these options available:
- Default
- Name (A-Z)
- Name (Z-A)
- Price (high-low)
- Price (low-high)
- Model (A-Z)
- Model (Z-A)
I have seen the code in category.php in catalog -> product and category.php in model-> catalog but can't understand what exactly to modify to achieve this.
Any help would be greatly appreciated.
Opencart version 2.2