A section is one of the core concepts in Tabbli, which allows you to organize collections in separated interfaces. In the side menu, you can see them as the first level items and collections as the second one.
At the picture, you can see the side menu with few sections: Events, Vessel-Planner, and Hall management. So, you can build any data structures and automation scenarios which your organization needs. But you can also organize the structures with different sections depends on the purposes.