iprocurement stores

Hello

I have a requirement where a specific store type like Grocery needs to be created and assign to the specific responsibility.

We already got several other stores. The issue is that, when i create the store (assign smart form & templates), other Iprocurement Responsibilities can see them

How to restrict this to a particular Resp. Also I am curious if I need to use content zone.

When we log in with Iprocurement Resp, I do see the list of all stores. I want to remove Grocery Store from here and make sure only specific Resp(which we plan to create)