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A polygon is a shaded/coloured area on the map that can be linked to a form.
Create a GPS User Field for the Polygon
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5. Pick a colour for the polygon.
Create a Count Widget on the Dashboard for the Polygon
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2. Add a count widget and include the form types you created the GPS user field on.
3. To ensure the map view is loaded when clicking on this widget, pick Map View in the Default Display drop down.
To see how to draw a polygon refer here
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