I actually have this issue as well. I brought it up here: http://forum.queuemetrics.com/index.php?topic=624.0 but never was able to solve it.
The issue is that when running a report on a specific queue, the Agents tab displays information about every single agent that has received a call and not just the agents in this particular queue.
For example if I run a report on the sales queue and go to the agents tab, under availability it will list agents from sales, support, technology, etc. I want it to just show availability for agents in the sales queue
I am using security keys but this does not seem to be resolving the issue...
When you run a report, you see all agents that took at least one call on the queues you selected. So as you restrict visibility by queues, you see them all that worked on queues you're supposed to see.