Hello,

Please add this code to the functions.php of the child theme:

add_filter('woodmart_categories_shortcode_custom_sizes',
			function() {
				return array(
					'desktop'          => 8,
					'tablet_landscape' => 4,
					'tablet'           => 4,
					'mobile'           => 4,
				);
			}
		);

Please note this change would be applied to all the categories carousel. Unfortunately, it is not possible to make it individually.

Best Regards