Hi Cody,
If you wanted to adjust en masse, I'd suggest doing it at the queue level since the agent should already be assigned to the queue, just inactive. This can be done by using the Queue Agent Detail view. In the bottom right-hand corner, there is a button to show inactive agents, from there you can select the checkbox next to their name and active them to the queue.
You could also use this view to see what agent is in what queue. Depending on how many queues you have, this might be more efficient than going to each agent's individual profile.
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Caleb Smith
Interstate Gas Supply, Inc.
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