missing "hide" function inside the StaticMesh editor

I can not find this function. I think this has been asked some times in the past with no avail. Is this very basic function missing yet? Sometimes I want to see how the materials work ina group of elements hiding one, and isolate is not good enough. for example if I want to check teeth and gums together when they are two separate elements hiding the skin.
I know there is the option to apply transparent materials, but this is a messy workaround as you can break easily the materials. :rolleyes: