I meant to say, I tried to re-arrange the custom tab using the method of arranging tabs that WooCommerce offer but I can’t find out what the ID is your using for the tab.
I also tried creating a custom tab from the WooCommerce instructions, but I need different information to appear for each product as the specs are all different.
Can you advise on how to either re-order your custom tab OR how to add a custom tab that appears on the product page back end, so I can put in the technical information of the product.