Create a box-products

[magunet89]

Hello,

I've this necessity. My client wants to give a possibility, for one specific category, to let choise any products to create a box.

 

For example, I want to buy a set of 4 placemats for the kitchen, of which each one is a different product but naturally in the same category. When I choose the 4th mat it has to be applied a discount of 30%. Can I do it with the normals functions of Prestashop?

 

If there's no solutions, does anyone have any idea?

 

Thank you!