[otrs] agent to receive notification when assigned to multiple queues

1. if an agent want to receive notification about a queue (ticket open, close, update), he needs select his custom queue(one and only?). My question is, what if the agent gets assigned to multiple queues, and he would like to get notifications? 2. If queue1 is associated with group1 queue2 is associated with group2 queue3 is asscoaited with group3 queue2 and queue3 are subqueues of queue1 user 1 belongs to group1. Now I want user1 to receive all notifications about queue1, 2 & 3. Is this possible? (I think this might be a problem, because you can only choose one custom queue)