Snapping palette (eight buttons)
   Click on a button to toggle it “on”. (defaults to Free or Grid “on”)

   Unless otherwise stated, double-click on a button to lock the button “on”.

   Generally, must click within 3 pixels of snap target.

   Drag the Title bar to reposition the palette.

   Click the Close box to turn the palette display “off”.

   Use the snapping functions to intuitively/accurately place:
   a cursor, a vertex(es); a 3D tool control point, a tool Anchor, a Guide, 
   a Marker, the Origin, an Item, a Rotation Point 

   Free [f]
      Disables all Snap palette functions.
      Double-click to access ModelPro Preferences dialog box (Grid Options)
	
   Grid [g]
      Cursor/Vertex snaps to grid.
      Double-click to access ModelPro Preferences dialog box (Grid Options)

   Vertex [v]
      Cursor/Vertex snaps to vertex on selected item when click on the object 
      near vertex.

   On [o]
      Cursor/Vertex snaps onto object nearest position of cursor when click 
      near the object.
	
   Marker [j]
      Cursor/Vertex snaps to Marker when click near Marker. (User sets Marker(s) 
      from Guides pull-down (Ruler))

   Midpoint [m]
      Cursor/Vertex snaps to midpoint between two vertices when click on 
      the object.

   Center [c]
      Cursor/item snaps to geometric/volumetric center when click on an item.

   Intersection [i]
      Cursor/Vertex snaps to visual intersection of two objects when click near    
      intersect point.