I created a new test build (
81977b2
). I added a telemetry item for max altitude. Row 10, first column. The value will be reset to zero by a long UP press while on the telemetry test screen, and when the tx is powered off.
Probably using the datalog to record the altitude is a better solution, but the script to decode the datalog file is way out-of-date and I don't have time to update it right now.
Have a great holidays!