• Checking a stock quantity of a product, which is greater than zero. 
• Checking "Available for order" option of the product instead of checking of its a stock quantity of a product (the setting is useful, because sometimes selling of products are performing without taking into account of stock quantities).

• categories
• search (including a list of instant results by Ajax)
• manufacturers
• suppliers
• new products
• bestsellers
• prices drop
• and other pages and blocks

• The module works correctly together with various modules that use PrestaShop core to get a list of products, for example: «Top-sellers block», «New products block», «Featured products on the homepage» and many others.
• But the module is not works «from the box» with such complex filtering modules as «Layered navigation block», «Faceted search», «Advanced Search 4» and others. These modules use their own methods for obtaining a list of products, instead of PrestaShop methods. To make such modules work together, there is a solution, but it requires changing the code of these modules. Unfortunately, it is not possible to make this integration without changing the code of other modules.
• Together with the user manual, you will get ready-made modified files for integrating «Sort products in-stock first» module with various versions of popular modules: «Faceted search», «Advanced Search 4». The user manual provides instructions for integrating with any other module.

• The additional feature is to sort products with combinations properly when a base price of a product is zero. You can check your PrestaShop and you will see this problem.
• The "Sort by stock quantity" option on the product listing pages is no longer needed.

For 90 days after your purchase, you can enjoy technical and feature support, as well as access to updates available for this product.

Make sure this product runs well on your store for 12 months with Option Zen!

With Option Zen, you get access to ALL updates for the product for one year following purchase. Support from the product developer is available by email to answer all your technical and feature-related questions.

What is Option Zen?

Option Zen includes two services:

• Unlimited after-sales support during the period covered by the option
• Access to all updates for the product during the period

Option Zen is available at a discount when purchasing this product, but, if you miss out, you can also buy it via your customer account later. It is valid up to one year following the date of purchase of your product. The earlier you buy it, the longer you can enjoy it!

What does it include?

The following are included in Option Zen:

• questions about using the module/theme;
• solving technical problems related to the module/theme;
• access to all module/theme updates.

The following services are not included in Option Zen:

• customization and special development;
• installing and updating the module/theme;
• solving problems concerning third-party services, hosting, the server, or the PrestaShop software.