How do I set the default sort for a specific category?
The default sort for all categories can be set under Store Setup > Store Settings. Click the Display tab and then scroll down to the Categories section to select the default sort for all categories.
To change (override) this default sort for a specific category, go to Products > Categories. Find the category you wish to change and click the category name to edit it. Scroll down to the Default Product Sort dropdown and change it from Use Store Settings Default to one of the other options.
This can be especially useful for categories like New Arrivals (sort by newest) or Sale (sort by Price: Low to High).
Make sure to save your changes when finished.