Buy now button for woocommerce

Hello woocommerce forum, I am trying to get a “buy now” button on the product page. I found a few ways to do this but there’s a problem; either the buttons need a particular product id (which is not what I want since I need the “buy now” button to work across all products instead of specific one). Other ways I’ve tried seemed to work until I realized the button isn’t recognizing when a product variation or quantity is changed, as soon as I’m taken to checkout only the default variant will show even if I changed it on product page and even if I’d increased the number of items, only one item gets sent to checkout. I’m also trying to avoid the use of plugins heavily since I’m already on a shared server which is bad enough, and I’ve already tried 3 light plugins I could find. Is there a code I can use to implement this? Also I hate having the add to cart, buy now and the quantity button in the same line, but I’ll probably be able to work my way around it using “margin” in CSS. However, if you can place the buy now button on a line to itself within the code that would be great. I Hope I don’t sound demanding lol, I’m literally begging.

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