webservice - block some information

[sadlyblue]

Hi,

I'm trying to set up prestashop webservice, to provide access to our products.

But i want to block access to some informations in the products, like:

- Supplier reference

- Description (to display only in one language)

-...

Is there a way to accomplish this? In back office configurations i only checked the view in products and products-options. But even with this last one deactivated the supplier reference was showing,...

Thanks