Selling two e-books with one buy now button

[endo-resolved]

I have had a search and this advice seems out of date.

Is there a code I can use to have two ebooks purchased using a single 'Buy now' button.

Thanks in advance

[E-junkie_Guru]

If you just want a product to issue a collection of multiple files, this help page offers some approaches to do that:

Selling package products that bundle multiple files

However, if you want a button that adds two different products to a buyer's order with a single click, you can create a multiAdd to Cart button as we describe in this forum thread:

Auto-entering multiple items into a cart?