In the project settings there's a field for additional compiler flags:
cd78c73c-eb83-4798-b02a-b8b309e88323-image.png
Just put in ENABLE_ALL_PEAK_METERS=1 to enable it (make sure you do this for every OS target.
But I've removed the necessity to do so if you just want the AHDSR graph to work in a commit yesterday.