Limit products on new-products page

[LavLui]

Hi, 

I am using PrestaShop 1.6.1.24. Want to limit products on new-product page, found  public static function getNewProducts($id_lang, $page_number = 0, $nb_products = 10, $count = false, $order_by = null, $order_way = null, Context $context = null) but do not know how to change it. I triend to add $limit=50 but didn't work. 

[Knowband Plugins]

We want to tell you that you need to modify the third parameter of the getNewProducts() i.e $nb_products which is used to display the number of products on the page.