Hi @Rogerio_Penna so far there’s no method to draw or mark a region on the built-in map. If you know the LatLong coordinates of the area to be shown, or it’s the current location, and you’re not working offline, you should be able to use an Initial Value formula with the Drawing type to set the background of the drawing to a static map image from Google’s static maps API or similar service.
developers.google.com - Google Static Maps API | Google Developers
For example a url like this produces a map image of New York:
To make it work within the app you’ll need to get an API key and include the key in the url. So ultimately you’d need an Initial Value expression like
=Concatenate(“https://maps.googleapis.com/maps/api/staticmap?center=”, [LatLong], “&zoom=12&size=600x400&key=your_api_key”)
where LatLong is a LatLong-type column to capture your current location or set the location based on your data (note that using HERE() directly in the concatenate instead of a separate LatLong column currently doesn’t work for this). You could also use a Number column to dynamically adjust the zoom. Google Static Maps API | Google Developers developers.google.com