This is an old revision of the document!
I need the customers to be able to choose how many sets he/she want of each label in the “shopping cart”?.
I want the customer to be able to choose number of duplicates in the shopping cart in the manner I have tried to illustrate. It is a box with number 1-9. To change number the customer should press the arrow up to increase and arrow down to decrease amount. The price need of course to be updated in real time. Remember also that the total amount field needs to be updated.
I have also attached a screen shot of how I think the amount of sets should be displayed in webmaster email. It should be integrated the same way for the customer email. 
discount
I need another feature in regard to the multiple set in shopping cart. I need a discount calculation. 1 set = 100 % of the price. 2 set. = 90 % etc. The price setting should be set somewhere in the code easily changeable for me.