Thank you for posting this question! Of course, through EmbedReviews you can add as many Google locations as you would like and pull the reviews from those locations.
The number of Sources refers to the number of social media accounts or hashtags connected to the platform.
Or if you have 1 Google location = 1 Source
So if you have 3 Google locations, the perfect plan for your use case will be the Pro plan.
Feel free to check our pricing plan here and see which of the plans will work best for your use case:
Note: You can create one different widget for each location and embed it on the specific page of your website, or you can create one widget that will display all the reviews from all of your Google locations.