Bonjour,
Pour cela il faut ajouter la ligne:
echo '<span class="hikashop_product_stock_count">'.JText::sprintf('X_ITEMS_IN_STOCK',$this->row->product_quantity).'</span><br/>';
avant la ligne:
echo $this->cart->displayButton(JText::_('CHOOSE_OPTIONS'),'choose_options',$this->params,hikashop_completeLink('product&task=show&product_id='.$this->row->product_id.'&name='.$this->row->alias.$this->itemid.$this->category_pathway),'window.location = \''.str_replace("'","\'",hikashop_completeLink('product&task=show&product_id='.$this->row->product_id.'&name='.$this->row->alias.$this->itemid.$this->category_pathway)).'\';return false;','');
dans le fichier "quantity" via le menu Affichage>Vues.