Queues for user

Hey.
There are configured hotspot, all works. Users are allowed to register up to 4 devices. Now each device creates simple queues and be limited device speed.
Tell me please how to make a restriction on the user to speed divided between its devices?

Is over-asked question, if you use search…
You can not do.

Of course before I ask a question on the forum, tried to find an answer via search. But all I could find belonged to simple queues. That I was able to set up for a speed limit on the radius server to the user. But alas, this queue is created for each user device.
And here is how to make a tree for each user, I can not understand.
Скриншот 2014-06-02 20.32.27a.png