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Sometimes having a dozen options puts people off as they are often looking for direction when they start a new game.
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So they should only see the Training Arena.
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Note: Please allow a few minutes for the requested trainer to respond
The requested trainer will receive a notification that he is requested in the training arena.
In the event that the requested trainer goes off line the requesting individual will be added to a queue and the the remaining online trainers will receive the notification and then another notification stating which trainer went to the TA.
The reason we have appointments for training is because the trainers are volunteers, who like to play the game. Waiting to train somebody is a pointless waste of time. We have done it anyway just in case it helps someone.
There is no line of players waiting for training. That's not a problem that needs solving at this time.
... The good thing is you need a much lower level of trainer to at least help get a newbie up to speed, so a lot of guys would be qualified as a newbie "greeter" even if they aren't part of the high priesthood. 
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We call those guys "players" not low level trainers. We appreciate their help.
A trainer needs to understand what a trainee is trying to do, what they're actually doing, and what they need to do. And has to be able to explain it. You cover what's in the training material but the main thing is getting the trainee to understand the things that aren't intuitive like the lead turn, lift/drag curve, and A2A gunnery.
At the same time you help with the game you also represent HTC the business. I doubt HTC would want less qualified trainers.
