Coordinates from app inventor to google maps html code

[Aristeo Dominguez]

I´m trying to set a marker in a map by reading the coordinates from app inventro using webstringview,but i cant find the way,any ideas?

[Taifun]

How does the new property Webviewer.WebViewString work?

some examples which use that property you can find here https://puravidaapps.com/tutorials.php#html 

and 

How to use App Inventor together with the Google Maps JavaScript API to display the current location together with a custom map

Taifun