Is there any way to draw polygons by selecting all objects and creating a polygon automatically or just selecting each point of the polygon on the Map?
In the Map application, that functionality does not currently exist. However in the Workshop application, you could achieve the “selecting objects and creating a polygon from them” by taking the Selected Objects object set variable, generating a GeoJSON polygon made up of those objects’ points, and then passing that into the Drawn Shapes variable.
Let me know if that workflow makes sense. Also interested in hearing more about your workflow and what you’d like the output polygon to look like. Are you looking to build a boundary around the objects, and would you want to include holes in the resulting polygon?