What is the serialized variable name for Optimize Realtime UVs ??

I am writing an editor extension to disable optimize realtime UV's on all renderers on a model because there are alot of components it is too time consuming to do it manually.

I need to know the var name to disable it:

so.FindProperty("m_ScaleInLightmap").floatValue = 50;

I cant find it anywhere!

 

I can find anything on accessing UV chart control settings on google:

https://www.google.com/search?ei=w6...2i10i30k1j33i22i29i30k1j33i21k1.0.u9UShWQPbl4

 

where is it!!?

https://docs.unity3d.com/ScriptReference/Renderer.html

 

So annoying. I cant find how to access the Chart Controls, Max distance or Optimize anywhere....