What are flexible WordPress checkout editing plugins?

Question

WordPress

Good day to all!

Question: I need to improve the order form. Website on wordpress + woocommerce. Now there are only 3 fields (name, phone, address), all of them are text, the form is made using the Flexible Checkout Fields plugin. But, since its trial version is used, you cannot add checkboxes and other non-text fields in it. And I would like to add, for example, a radio button with a choice of payment method and a select with a choice of delivery or pickup. What would you recommend to use? At first I got into the side of hacking the plugin, but I realized that it’s not so easy to figure out where and what blocks the possibilities of the pro mode)

Answer 1

Is it possible to connect Contact Form 7?

Answer 2

Cf is used for feedback forms, and here you need to change the cart page.
There are many plugins for woocommerce, but almost all of them offer the purchase of a paid version to make more complex cart options. And I would like to understand, maybe there is something free, but with flexible options.