Where should I place the 'direct-checkout' code in a Sense Theme?

i followid this tutorial https://speedflytheme.com/how-to-add-a-buy-now-secondary-button-with-direct-checkout-on-shopify/ to create a buy now button, TLDR; I created a direct-checkout.liquid snipet, and now i only have to add{% include “direct-checkout” %}, thing is i dont want this in my product page, i want in my collection sections or collection pages, i want it to show above the “agregar al carrito” add to cart button as marked in the image, so how do i do this? i figured it might have something to do also within my card-product.liquid object in my snipets folder but im not quite sure, can someone help me out?

Found where to put it but now im getting this error instead of the button “Liquid error (snippets/card-product line 273): include usage is not allowed in this context”