Autodesk 3DS Max Object snaps
Standard snaps give you control in creating, moving, rotating, and scaling objects. You access the 3ds Max snap features from buttons on the main toolbar.
Snapping to: endpoints, midpoints, edges
You make most snap settings on Grid And Snap Settings, a modeless dialog with four panels. You can move this dialog to any convenient location on your screen and turn options on and off as you work. Panels are reset to defaults for each new session.
You can also make commonly used snap settings on the Snaps toolbar. In addition, a Snaps quad menu gives you quick access to some snap options.
Snap settings are stored in the 3dsmax.ini file rather than in the MAX file. This means that the state of the snap settings persists from session to session without your having to modify the maxstart.max file.