1. From your BloxCMS Desktop, go to Design / Blocks and open the Blocks application.

2. In the URL Library, open your root (main) URL to Edit.
3. Expand Page Customizations on the far right of the application.
4. Navigate to API Keys option and expand it to edit the properties.

5. Check the checkbox next to Google Maps API Browser Key and enter it (don't have a Google API Key, Get One Here).
6. Click on Save Changes at the top of Page Customizations.
7. Click on Save Layout Changes on the Toolbar in the Layout section of the application.