I just wanted to see the built-in maps limitations and capabilities and this is the closest I can come up with 
There is no clicking on the map to create a new marker I guess. It can display a list of things with a geographic address though, something like below:
The map can be configured with these at the initialization, with a specific zoom and starting point set as the current point of the user:
I had to create just a plain icon sitting in the middle of the map to give the effect of the center:
Of course, there needs some nice layouting needed (a group has the map and another group with the icon inside:
Then, we can get the center of the map in workflow while creating a thing at least.
And you can do more stuff when the markers on the map are clicked.
And here is the full editor if you want to check the details: