Adding external data values from telem ports to the log file : pixhwak?

hello guys ,I’m bit struggling with something.

Using certain pressure sensors , Five hole probe and Teensy control boards I’m able to calculate the air speed , alpha & beta of the aircraft. I’m doing the mathematical part in teensy and sending the results over serial ( telem 1 ) in pixhawk.

Now I need to read this new parameters from telem 1 and log them using the sdlog2 . If my understanding is correct sdlog2 starts logging once the vehicle is armed.

How to add this new parameters to the sdlog2 ? What changes to be made ? Hope someone can give me a way to move forward.

Thanks in advance

Answered here, Logging data to pixhawk SD card.
Look at the new logger rather than sdlog2.