Efficiency (mAh/km) for DJI FPV OSD: Is this planned?

It would be really nice to finally get an efficiency metric for the DJI FPV OSD. (I have the other metrics enabled.) Is this planned, or already in 4.2 (or 4.3 beta)? I checked the change logs and the closest thing I found was “DJI FPV OSD multi screen and stats support” which doesn’t seem to specifically mention it.