[Typo3-shop] category display in BE

[Piotr B.]

hi!

i've got one problem with tt_products' categories. i've searched the 
documentation, but didn't find the answer.

on my typo3 site i've got few shops, for different products [for example 
two shops: cars & snowboards]. each one has it's own categories. is 
there any way to configure tt_products [in the constants section?] not 
to display all the categories while editing product in the back end?
now - when i add or edit a snowboard, i see categories from snowboards 
and cars [& vice versa]. any ideas?

tia for answer,
piotr.