Drag Mode toolbar
To open a toolbar...
DragMode
Specify the plane object dragging will be parallel to.
DragMode, CPlane
Set drag mode to construction plane.
DragMode, World
Set drag mode to world.
DragMode, UVN
Set drag mode to surface UVN.
DragMode, ControlPolygon
Set drag mode to control polygon.
DragMode, View
Set drag mode to view.