show updated prices depends on quantity

[Naturt]

Hi there!

I want to display all of my products in one page (with details), and calculate the products prices depends on the choosen quantity. My customers love this simple order page, but I can't reproduce it in VM 2.020b.
Does anybody knows any solution to this? I found a component what is works similar: http://demo.breakdesigns.net/build-your-pc | but it has too much option.
VM does not know this feature as default yet?