It is possible to show maps made with

After opening a map in mapsengine, you will see the id of the map in the url:

Rename the edit to kml in the url, so:

{mosmap kml=''}


Also working with KML renderer GeoXML. You need to add behind the url &forcekml=1, see:

{mosmap kml=''| kmlrenderer='geoxml'}