Coupon code in checkout

Hi. I’m new with this theme and I’m loving it. Thanks for this great work.
Using Woocomerce plugin for my store, I’m seeing that when a customer has a coupon code, the tab to introduce it is only in the cart page.
If the customer goes directly to checkout without seeing the cart page, there is no option to introduce the coupon code.
Am I missing some customization option for this?.
Thanks in advance for your help.

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