How can I integrate an order form I created (custom) in ‘Calculated Fields'(CF) plugin with WooCommerce “Products,” “Cart,” “Checkout” so my customers will get a cost total / quote in real-time? My business has a complicated sales model which is all based on services (many variations). I am currently using the basic version of CF and WC. I also am using Elementor (upgraded) and would like to know if that would help in this case. Am I better off to integrate my form with PayPal and send invoices? That involves a few extra steps I’m trying to avoid.