Followings lets you keep track of specific topics you are interested in among your subscriptions.
1. To set followings, click top-left hamburger button to open navigation drawer (swipe menu), then click Followings.
2. In followings, click + button in the top-right.
3. In the Add dialog, enter the topic you are interested in. You can add up to 30 unique topics.
5. Back to Followings, you will start seeing related story showing up if there is any.
6. In Manage Subscriptions, you can mange all your following topics.