I mean
Like If customer wants to by more than 1 of upselling products listed, than he would have to click add to cart and it will take him to shopping cart page and he will have to come back and do same for second upselling product he wants to purchase,
instead if we can just make a check box [ ] instead of buy to now button for all products, and at bottom just put one add to cart or buy now button in regards to all products, so customer can select / check mark on whatever Items he wants and than just hit single add to cart or buy now button.