it doesn't have it., Sorry.
WL for Mac is awful. It only gives the very basic information. You can't see your other sensors, you can't see the uv or solar should you have them. You can't see your soil moisture or other stations.
Graphs are non existent and along with that, the Envoy8x is gone. I would say that a person probably should "bootcamp" their mac if they want that to work.
I have explained to Davis the situation, and they say they will forward it to their software dept. Really?