How to write a Lua script for radio transmitters (jamper t16)?

Question

Quadcopter

Good time. I want to hang a homemade trinket on the drone. I want to try to control it through the receiver of the drone itself, for example radiolink r9. The instructions say that it has PWM support from 5 to 10 channels. Accordingly, I just have to consider the signal from the channel as my homemade product. But with the transmitter is more difficult. As I understand it, with the help of a lua script, you can configure the key so that when it is used, for example, a signal is given on channel 5. Only logical 1 should be passed. Are there any guides/instructions or examples of such lua scripts for the jumper or its analogs?