As far as I know you can only get global scene statistics via the 'Project Info' dialogue under the file menu.
If you're thinking with regards to the polygon export limit in Modo, individual objects should be possible in under 100K polygons with ease and if you're experimenting with the likes of Unity low polygon counts are essential. As an example the leather sofa you posted in your first post would be well under 100k polygons if you convert your sculpt to a vector displacement map (without vector displacement it will be significantly higher).
Modo Indie has no limitation with regards to polygon count when rendering within Modo (it will happily deal with 20-50 million poly's), the limitation is only on the export of individual models.
A real time architectural render scene in the likes of Unity should be under 250K to run optimally. A typical Vray scene (without vegetation) will be 5-10 million polygons. Once vegetation is involved you can easily have scenes with 100's of millions of polygons (and these are usually handled by external instancing for optimal performance and memory handling).