A 3D Point Note is attached to a selected point on a model.
An 3D Edge Note is attached to selected edge on the model.
A 3D Note is attached to a selected spot in the 3D space and will rotate along with your model.
A 2D Note "floats" above the scene and remains in place as you pan, rotate, or zoom—it does not move with the model.
An 3D Surface Note is attached to selected surface on the model.
Auto Note enables you to automatically name or number all or selected parts or subassemblies that comprise your model.