Limit navigation between posts to one category of woocommerce product

Hi again! :)
Im building a catalogue with woocommerce,
when u are in the single product page If you hover your mouse pointer to the left or right of the screen there is an animated prev/next post arrow.
They point to previous or next posts, in that case product. How can i limit that navigation to a single category?
I already tried with this code but nothing happens:

add_filter(‘avia_post_nav_categories’, ‘use_same_category_filter’);
function use_same_category_filter($same_category)
{
$same_category = true;
return $same_category;
}

Could you help me to solve my problem?
Thank u in advance!
Filippo

• This topic was modified 8 years, 11 months ago by frenchfries.