NG system updates

[Tighernan]

I have two NG batteries. The kinda middle NG bms, not the Lynx and not the small one, plus the cerbo gx. The NG batteries have a temperature sensor built in and from what I understand the Lynx NG BMS can read the temperature and cerbo and read it. Is it possible that victron just needs to update the Middle BMS so it can also read the information from the batteries, or is it something that cannot happen. What I want to do is use the NG battery temp sensor to trigger the cerbo relay to turn on and off heat pads. At the moment I’m having to use external temp sensor through the cerbo, which is located in the battery compartment , wouldnt it be better to use the actual battery temp.