Kml files on google Maps

Hi,
I'm searching a method for insert *.kml files in the Google Maps dashboard, how can I do it?
I'm thinking about manual modify the code of the dashboard page but unfortunally I can't found it!
This is the google API documentation https://developers.google.com/maps/documentation/javascript/examples/layer-kml
thank you for your reply
PS sorry for my bad english <img src='https://asprunner.com/forums/file.php?topicimage=1&fieldname=question&id=24028&image=1&table=forumtopics' class='bbc_emoticon' alt=':rolleyes:' />