I got the TQi with the new Revo 3.3 box. I was under the assumption that there were 2 and 4 channel versions of the TQi and since I have a thumb switch on mine, I assume I have the 4 channel version. My question is, where is the 4th channel? I have throttle, sterring, fwd/rev. Is that considered all 4? I thought fwd/rev is tied to one channel. Thanks in advance.

PS I was very disappointed to find that telemetry modules are impossible to find in stock. I really would like battery voltages and temp readings.