Give permission to one agent to create customer in one queue

[nima0102]

Hi
I want to give permission to one agent in order to add customer to one queue,for this, I set related permission to access "users" group, this agent can add customer,but can not bind new customer to related group.Is there any solution for this?
If I give "admin" group permission to this agent,he can access to all system,that it's not my desire!!

Thanks for any help or guidance