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 In Project Settings > Locations, you have the option to set the Spatial Type to Polygon when adding Project Location Levels.

 Click the '+' button to Add a New Level.  In the Add Level popup,  Add a Level Name and select a Spatial Type: Map - Polygon.

With the Information Added, click 'Save' to Add the New Level.

 With the Spatial Type: Polygon selected,  in the List View,  you can add Polygons,  Restrict Access and add Estimated Start and Estimated Finish information.