Good day, 

I want to make a printing option for my product business card that gives an option to my customer to choose 1 side or both side to design. Also, have an printing option for lamination(no, matte, glossy). 

My problem is on the pricing of Lamination because it is depends on the number of side.

Please see my current configuration here https://ibb.co/PwQptMc.

Your quick response is high appreciated.

Thank you.