Only-Download Shop - BestWay

[Endorphinum]

Hello everyone,
i have just found out how to add Downloads to the ZenCart.
My problem is that i will offer ONLY file-downloads as products.

I now have added 2 products and to each i had to go to the attribute
Manager and add a proper Attribute to it.

My question now is, if this is the correct way that i am working
or if you know of a better one!?

Because if this is the only solution than, am i right by saying that
with for example 500 products i also have to make 500 times the
attribute to each product?

I am still a little bit confused with the Attribute Manager, though i
know quite well HTML and PHP.

Thanks for your support and by the way: ZenCart rocks :)

Big hugs,

Carlos