| Shift | Activate,  
      Remove (Pick or Brush),  
      Split | Deselects selected elements | 
| Shift | Align using the Robot | Moves the Robot without moving the cloud | 
| Shift | 3D Curve | Activates/de-activates the Snap on elements 
      option | 
| Ctrl | Scan on Cloud | Previews the scan being created | 
| Ctrl | Curve from Scan | Moves the split points | 
| Ctrl | 3D Curve | Projects a point on its constraining element |