[TYPO3-commerce] user-group for shop-users

[t3gm.de - Gregor Maier TYPO3 Integrator]

Hi List,

i have created a new User-Group in BE for "shop-users". The problem is, 
that the shop-users cant see the whole page of product administration.
The only thing they can change is the category, because the only thing 
is shown when they klick on a product in the category tree is 
"Allgemein: Titel and Kategorien".

should the system folder of commerce depend to this group?

Some ideas?
I am using TYPO3 4.4.11 and newest Version of commerce.
Thanx for any help