Hello @minimal,
We regret to inform you that our theme does not have any influence on the thank you/confirmation pages that are provided by WooCommerce. These pages are archive pages and there is no direct option to edit them using WooCommerce.
Therefore, this would require extra customization or you can try a third-party plugin that better meets your requirements, but this is done at your own risk.
We appreciate your understanding.
Best Regards,
8Theme’s Team