Sometimes you may want to make sure that respondents either focus their map responses on a specific area or exclude some areas from consideration.
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On the survey page where you want to add it, go to Map and layout. Click New to upload the map file (shp, geoJSON, WFS) or to create it from scratch.
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Edit the name of the layer in the legend (or hide it from the map view altogether).
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Add the map question (e.g. Map point). Go to its Extra settings.
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Select the map layer under Restrict area. Select if the pins should be allowed to be placed inside or outside the area.