They may move tickets from department to department but they're not supposed to see tickets in other groups.
I've operated on the assumption that adding users to the specific departmental queues would be fine, and indeed it does work and gives them a very basic view, they get the dashboard and the tickets buttons as well as search. That's usually sufficient, I don't need them in the stats and certainly not admin.
However, I want them to have access to the Customers button so they can receive phone tickets and do so by adding the customer first and then creating a ticket. But I'm unable to figure out how to give specific agent groups just that button and the customer editing/adding rights.
If I give them full rights to the "users" group, they suddenly start seeing a bunch of tickets in another group and those tickets are all, for that matter, escalated and overdue. Now, I know those tickets are not in any way, shape or form connected to the users group, so why do people suddenly start seeing them?
What's going on here?

Thanks.