Hi @giovanni-2
Not admin but I needed to do this. It’s easy using functions in child theme (Left Menu -> Appearance -> Theme Editor
Open functions.php – child theme.)
Add the following code at the end before last ?>
function custom_woo_variations_limit( $limit ) {
$limit = 200;
return $limit;
}
add_filter( 'woocommerce_rest_batch_items_limit', 'custom_woo_variations_limit' );
Change limit to whatever suits. Hope this helps 🙂