Add quantity field to Woocommerce store page widget cart OR in product table without screening refreshing to update cart. (done with ajax) -- 2

I need someone to add a quantity field to Woocommerce store page widget cart OR in product table without screening refreshing to update cart. (done with ajax) [login to view URL]~demo/store/ Their is currently a field in the widget bar that shows the quantity but it is not editable.