Assuming you have created your project, navigate to the 'Feeds' tab.
To set up a new feed, click '+ Add new feed'. This will redirect you to the window where you can choose a feed.
You now have the option to:
Search for the feed you want to add, by using the search bar or the numbered pages at the bottom.
Filter by country
Now, when you have selected a feed, you have the option to give your feed a name (you can also do this after you've created the feed). Furthermore, it is possible to apply a Master rule group here, and it is also possible to do so in the future.