Actually, there is no option in the theme like this. There are two layouts available in the theme. Simply navigate to the Dashboard >> XSTORE >> Theme Options >> WooCommerce >> Single Product Builder >> Tabs there you will see the style option of the tabs “Horizontal and Vertical” only. Please refer to the image for a better reference: https://postimg.cc/LYjCSHb1
Other than this not possible from the theme options for now.
Regards 8Themes Team.