How to show cross-sell in product page

Hello,
i want to show the cross-sell slider in the product page, like the up-sell slider. I know there aren’t any settings to do that, so i have to change the php templates. How can i get a cross-sell.php template which acts like the up-sells.php? is it enough to copy the other file and change up-sells variables to cross-sells? After that, how can include that file in content-single-product.php? THANK YOU