Hello, @IP,
Custom Tabs, You can set them from Xstore >> Theme Settings >> WooCommerce >> Single Product Builder >> Tabs https://postimg.cc/q63jrtWp as per your requirements.
For more Custom Tabs: please read our theme documentation here: https://xstore.helpscoutdocs.com/article/106-support-of-the-custom-product-tabs-for-woocommerce-yikes-inc
Regards 8Themes Team.