Limiting over bridge

Hi there, I want to limit my hotspot user`s, but there are some problems around it, this is my scheme:
(incoming signal)Bridge -------->ether1–> Mikrotik → ether2 ----------> (Ap) Bridge.

So I tried limiting some of my hotspot users but it wont work, it creates automatically a queue named ether2 but i cant limit the hotspot users that are connected to my AP with my bridge.