Disconts Based On Total Items Quantity In Cart.

[pwl]

So, I'm testing the prestashop cloud, which I want to use to host my shop (currently hosted by a 3rd party company and runnig on magento - which I don't like).

I was wondering if there is any way to set the item prices based on the total items order. Easiest way to explain.

Item 1: 15€ for one, 10€ for two or more

Item 2: 15€ for one, 12€ for two or more.

 

What I want - cart contents and total order price:
Case 1: One Item 1 in cart: Total 15€
Case 2: Two Item 1 in cart: Total 20€ (2 * 10€)
Case 3: One Item 1 and One Item 2 in cart: Total 22€ (10€ for Item 1 + 12€ for item 2)
Case 4: Two Item 2 in cart: Total 24€ (2 * 12€)
 

I have found about the "Specific prices" and managed to get the cases 2 and 4 working. But I can't get the case 3 (which is essential for my business model). I have found a plugin that can be used to do this (Category Quantity Discount) but from what I heard from the developer it is not possible to use this plugin with the prestashop cloud based shop.

 

Is there any way this can be done on the prestashop cloud based shop? I don't mind buying an plug-in from the marketplace if there is one (i haven't found one though).

Edited December 9, 2015 by pwl (see edit history)