TextMesh Pro Change current material index

I have a list of materials that I can choose for the font in an objects inspector, but I need to change which one it uses programmatically.

However, TMP_Text.m_currentMaterialIndex is inaccessible due to its protection level. I don't immediately see anyway to set this with a method or to replace with a modified instance clone.

 

Could you use TMP_Text.fontSharedMaterial and set the material directly?

http://digitalnativestudios.com/textmeshpro/docs/ScriptReference/TextMeshPro-fontSharedMaterial.html

 

Thanks.

This worked with a cached instance that I assigned from.