The Version which is fully Compatible with Joomla 5 is now released.
My thanks to Robbie Jackson of the Joomla Core development team for his time and assistance.

Each web site owner must provide their own easily obtainable GOOGLE Maps API Key. Please see here: https://developers.google.com/maps/documentation/javascript/get-api-key.
Settings include the default height and width.

The map is called as follows: {tdocgmap position width=999 height=999 kml='kmlpath'}
Note the path [url] to the kml file may be enclosed in single quotes - ensuring backward compatibility.

The following position options are available when calling the map.
- print - makes the map 100% in width and 700px in height and overrides other settings.
- left - puts the map to the left and wraps text to the right with 15px margin
- right - puts the map to the right and wraps text to the left with 15px margin
- if none of these options are used, the map is centered with no wrapping of text.

Version 4.2.1 for J3/4 and J5 with compatibility enabled may be downloaded from the web site.
Noted that if you use Joomla's "Page Breaks", then the plugin will fail to display maps.