Overview of the Category Feature
When you enable the Category feature, the "Categories" field is added on the app form, and you will be able to hierarchically organize records using categories.
Categories can be configured with up to five levels of the hierarchy including the parent category.
Also, the category section appears on the left side of the "View" screen. The section displays the category tree set up for the app.
When you click a category, the list of records classified under the category is displayed.
When you click a parent category, the list of all records classified under the category and its descendant categories is displayed.
For the steps to configure categories, refer to Configuring Categories.