Your marketplace download version of this module allows shortcode content only under extra product tab in product page.It is possible to use shortcode content directly in product description-short description by a little beat code modification. But as there is possibility of bug and other issues, you are advised to test this trick on your local pc/test site at first, if everything is ok, then use it at live site.As this option is not formally included in our module, We will not be responsible or provide any kind of support regarding this.So try it on your own responsibility.
1. Go to your root>prestashop>controller>front location, and find Productcontroller.php file.Download this file, take a back up of this file.
2.Now check following screenshot.Add the red bordered code at same location of Productcontroller.php file as the screenshot shows.Then replace that file at root>prestashop>controller>front location.
Now clear all kinds of cache and check either it works or not.