| Zoom In, Zoom Out |         | 
| The image scale can be changed by following ways: 
 Possible ways to zoom in: 1. Press ">" key on the keyboards; 2. Press  3. Select Zoom In option in Scale menu; 4. Click the right mouse button and select Zoom In in popup menu. 
 Possible ways to zoom out: 1. Press "<" key on the keyboards; 2. Press 3. Select Zoom Out option in Scale menu; 4. Click the right mouse button and select Zoom Out in popup menu. 
 Possible ways to display map in 1:1 scale: 1. Click  2. Click the right mouse button and select Base picture in popup menu. You can also select one of predefined scale values in the bottom part of Scale menu. 
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