GQuadSphere script will add Quadsphere to your tools (Create-Standard Primitives-GQuadSphere)
This script allows creating correct sphere with quad topology unlike using turbosmooth over a box.
When creating quadsphere you can set up radius, Subdivision (max 3).
Also you can create hemispheres (capped and open)
Installation: copy GQsphere.ms to your script startup directory or to
C:\Program Files\Autodesk\3ds Max 2016\scripts\Startup\