How to add more tabs?

The product details page of my site has tabs called Description,Tags,Send to friend and reviews.

What i wanted was these tabs only:

Description,Video,How to Guide,Reviews and Send To Friend.

I know i can disable the Tags addon which will not appear on the product details page.

BUT how do i create more tabs? My site developer says it is not possible.And i will have to buy some kinda addon from cs cart. I have no idea what that addon is?

I need 2 more tabs Video And How to Guide. The video tab i need is beucause i want to show youtube videos there.And for How to guide i want to post tutorial with pictures.

What do i do?

Thank you in advance to anyone who can help me with this!

What version do you have?

YOur developer is wrong.

[url]CS-Cart Documentation — CS-Cart 4.15.x documentation