What is viewmode"Mesh LODColoration" command?

What is viewmode “Mesh LOD Coloration” command?
“viewmode lodcoloration” command working in playmode, but not working in editor viewport.
Is any command “LOD Coloration” for editor viewport?

Can’t I enter it with a command?
I want to use command in widget blueprint.

I tried another viewmode command, but it also dosen’t working.