Maps examples/Google Maps auto open info windows
From semantic-mediawiki.org
Usage of the "autoinfowindows" parameter. When set to "yes", all info windows open automatically after page load.
<display_map service="googlemaps3" autoinfowindows="yes"> 0,0|0,0 0,40|0,40 0,-40|0,-40 </display_map>
Starting June 11, 2018 the free usage of the Google Maps APIs is limited to 28,000 calls a month for dynamic maps. As soon as this monthly limit is reached no more maps will be served that month for this wiki by Google.