quantity field

Hi
I want to buy woocommerce integration but I have a question if you can help.
when you click on “Add to cart” it adds one quantity in to cart, but I don’t need quantity that way, I want user to enter quantity as a whole as oppose to put quantity for each product. for instance user just have to input quantity (one time input somewhere) and when he clicks on “add to cart” the quantity should be added.
please let me know if this is something doable ?

Thanks