Question

How do I add local *.kml file to the scene? I've added the path to my KML file from my local, but there's no 'OK' button to proceed. 

Answer 1

After selecting a KML file, it will be automatically loaded into the scene and the view will be positioned to the location of the data like this

Comments

does it support *.kmz?

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Currently, KMZ files are not supported for direct loading in iPortal. You can add the KMZ file to the scene, and then publish the workspace as a 3D service to load it in iEarth.