We upload how to set RX-MODE.
Please see the video.
RX-MODE will be good tool to improve driver skill.
For example, some other check throttle works and steering works when driver are driving.
The other can tell driver to take more brake in entrance of corners.
Also, the other request how much grip throttle.
For example, the other says "grip throttle 20 %."
And driver tried to grip 20 % during driving.
This training would give driver skills for transmitter operation.