i know it sounds awkward as nothing is easy in this world.. and by no meansi object artist and architect with professional degrees or experience can only create true 3D or 2D art. 
But being a CGI cut and paste hanky panky film makers like us 
how do we create 3D environment easy
i know a lot will say 3ds max maya softimage blender
but all of this tools requires high experience of 2D or 3D art and without artist and architectural and software usage knowledge you cannot peacefully create anything with those..
is there a easy drag and drop environment creation solution  that we can create environment and bring to iclone as fbx or obj ..
what software is that..  i know unity has pro builder .. but lets avoid unity