Okay
  Print

How to get google map api key

You can go to https://console.developers.google.com and register api key 

Remember enable API and services like my screenshot (remember verify your domain with api key)

http://prntscr.com/jtj6ra

http://prntscr.com/jtj3un

And you copy google api key to

+ Properties > Settings > Display Settings > Map Settings > Google API Key

http://prntscr.com/jtj5nz

+ Theme Options > Map 

http://prntscr.com/kf7dxq