Hi @siutek,
As I understand you wish to have the Coupon form to be displayed open by default instead of having to click to show the form. Or rather, to have the option to toggle this feature on or off. This isn’t possible in the current state of the checkout block, though, but it’s a great suggestion.
We appreciate your suggestions and are always looking for ways to improve our products and services, and input from users like you is invaluable.
We have a website where you can submit feature requests and upvote the ones other people submitted and you like. You can check that out?here.
In the meantime, I think this could be achieved through a custom snippet. A quick Google Search would be a great place to start! If you’re a developer or you can hire a developer this is an option to consider. I can recommend the Woo Developer Resources Portal for resources on developing for WooCommerce.
You can also visit the WooCommerce Facebook group or the #developers
channel of the Woo Community Slack. We’re lucky to have a great community of open-source developers for Woo, and many of our developers hang out there, as well.
Please let us know if there’s anything else we can do to help or if you have further questions.
Have a wonderful day!
-OP