ZOOMFACTOR system variable
Zoom factor
Controls the incremental zoom change with respect to the mouse-wheel.
When zooming in, the incremental step decreases gradually allowing to focus on a particularly detail easily.
Values between 3 and 100 are accepted.
| Type: | Short  | 
                     
| Saved in: | Registry  | 
                     
| Range: | 
                            3 to 100  | 
                     
| Default value: | 
                            40  | 
                     

