Tram Byte is not sent to Steer board

Hello , i browsed PGN files and saw that there’s supposed to be a tram byte sent to autosteer board. But in reality nothing is sent , so whith every AOG version i need to modify source code to make it work , is this a bug ?
In mine opinion teensy autosteer board should recieve tram byte , and raise / lower implement data
and the machine board should be left for sprayer control.