Sure it just needs to be a doublesided mesh in Babylon.js/ have no backface culling.
Are you talking about using the "Add sphere" action here? Because that one has been there a long time just for testing and doesn't really provide anything in the way of manipulating the sphere beyond positioning.
So yes what you're asking is perfectly possible but unless you're using an imported sphere model that's properly set up in the way you suggest you will not have much luck with the things the plugin provides directly.
