Section 8.  Working with Data Files on the PC 
Zoom Feature 
You can zoom in on a particular area of a graph by holding the left mouse 
button and dragging the mouse cursor from top-left to bottom-right over the 
area to be zoomed.  Dragging the mouse cursor from bottom-right to top-left 
will undo the zoom.  This can also be accomplished by pressing the Undo 
Zoom 
 button on the toolbar. 
For a Rainflow Histogram or for a Histogram or FFT in 3D View, you can also 
zoom in and out by using the Page Down and Page Up buttons on your 
keyboard. 
Rotation 
For a Rainflow Histogram or for a Histogram or FFT in 3D View, you can 
rotate the graph by using the scroll bars at the bottom and right of the graph. 
Keeping Graph on Top 
The currently selected graph can be kept in front of the data view window by 
selecting View | Keep Graph on Top from the menu or pressing this button 
 
on the main View Pro toolbar . 
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