Authorization object on Customer Hierarchy (KES3)

Dear Experts,

we have zone wise reports developed in COPA, we have used customer characteristics for hierarchy (KES3), now we want to gave each zone authorization to difference users, e.g user1 see only zone1, user see zone2 and zone3.

i want to create CO-PA authorization objects based on char. hierarchy nodes in customizing node "CO-PA".

Regards

Usman