Is it possible to have the ground transparent in a Web Scene?

[KylaCupp_SBY]

Hi there!

I would like to overlay a scene in my experience builder and only be able to see the layers, not the ground. When I use a 2D Map I can set the base map transparency to 100% and can successfully see the content behind it when I insert it into the web map: 

Using the same layers in a 3D scene I have "no base map" selected and the ground transparency set to 100% for good measure. The background color is set to "none". Yet I cannot gain the same transparency as in my 2D map. 

Is it possible to have this transparency? All of the setting that exist lead to to believe that this would work but maybe I'm missing something! Any help is appreciated even if it's bad news. 

Thanks,

Kyla