How To Make Discount On Product Price Only + Add New Surcharge Field


I wanted to make surcharge discount on wire transfer method but the cs-cart count the discount from the total price which is Products price + shipping price

How to configure it to only calculate that only on the product price.


The other thing I want to make the shipping cost separated from delivery cost in the invoice and at the checkout I need it to be showing as this

Product price

Shipping cost

Delivery cost*

couldn't find a way to do it and I didn't find an add-on that could do that for me.


I hope it's all clear, and thank you in advance for your help.