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1. Open the Interfaces tab of the System Settings window.
2. Create a Map object under the Display object in the tree, or choose an existing Map object.
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3. Specify an id and name for the Map object, and choose the Display object to become the parent of the map.
4. Set the coordinates X and Y of the upper left corner of the Map window, as a percentage of the corresponding screen dimensions.  
5. Specify the width (W) and height (H) of the Map window, as a percentage of the corresponding dimensions of the screen. 
6. From the Monitor drop-down list select the number of monitor for which coordinates are specifying.
7. Press the Apply button to save all changes made to the settings.

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