Hi,
This is not really a quick view popup. That's a popup to update the product information in the cart.
There is no system in HikaShop to allow you to update the product information in the cart. If you want to select another variant of a product, it requires that you first delete the product in the cart and add it again with the new characteristics values selected.
If you really need to do that, you can edit the file "cart" of the view "checkout" and customize it to do it, but it's not easy to do and will require a big development project from a skilled PHP developer.
If instead you're talking about a popup that would open with the product page content when clicking on the image of the product on the products listing (instead of displaying the product page itself on the full page), that's possible with some small modifications. Here is a thread talking about doing that:
www.hikashop.com/forum/2-general-talk-ab...n-popup-product.html