So my main problem seems to be that the series can not be convinced to do a 3D sphere (half transparent as a surface or as a mesh, either would be fine – later I want to be able to activate one of those or both). The result could vor example be similar to the plots I do with exports and rendering (Asymptote) here.
So how can I get a surface sphere in a series here ? Neither :surface nor :wireframe as series typedo work.