I've done some changes in the woocommerce .php files to display the checkout the way it needs to be for my case but by doing so, I've learned that it will be or maybe be erased with the next update. I don't have the abilities and don't know what to write in the functions.php file to apply theses changes permanently and don't know if it's possible to do it.
here is what I achieved to do, and there are a few things that need to be added.
add (exclu. tax) to
product-priceshow
product-subtotaltax included and not excludedadd (exclu.tax) to the
fee-total

As you can maybe see fees are showing after the cart-subtotal
Is there someone that could think about what I need to write in functions.php to make this happens and is that possible without touching the .php files of woocommerce ?
thank you !