BM Camera App - Zebras Mid Grey and MG+1 Questions

In the zebras section of the app I see Mid Grey and MG+1. I have been using these to expose Apple Log with a grey card. I don’t see any documentation on this feature, so I have a few questions:
- To what IRE % do each of these zebras settings correspond?
- Are the zebras intended to be used like over-exposure zebras where once you see them you back off? Or are you supposed to see the zebras when you have hit the intended IRE%?
- Is this a workaround for the issue with inconsistent clipping zebras when changing ISO settings with Apple Log? Middle grey IRE% stays the same across all ISO settings, correct?

Thanks!

Can someone from Blackmagic respond? Help would be greatly appreciated.

DOES ANYONE FROM BM MONITOR THIS FORUM? I have sent emails to support and they have instructed me to post questions here. Not a good look for the brand and quite aggravating to not get any response to a question about a feature you spent time and money developing.