Insert products gift with a minimum cost

-- url of the page with the problem -- : www.laputea.com
-- HikaShop version -- : 2.6.1
-- Joomla version -- : 3.1.0

I've read other posts on the subject, but I have not yet figured out how to do. I do not know if we have entered this function in the latest update hikashop.
I would like to implement the "product as a gift" feature if you spend at least 50. For example:
if you spend 50, product "x" as a gift;
if you spend 100 product "y" as a gift;
(Products are present in the store).
No matter if the products appear in the cart or must select the customer, the important thing is that they appear only when the customer reaches the minimum amount.
Can be done? If so, how?
Thank You!

I honestly do not know how to do. You can do it?

I take advantage of your kindness.
I would like to enter the fidelity points, I know there is a plugin that manages them, but it should be integrated with component AlphaUserPoint, but it no longer exists! I do not find either the jed Joomla nor is there the site of the developer. There is an alternative way to activate the fidelity points?
Thanks so much!

Always efficient! Thank you!