Application Universe, by default shows all the Contexts and Actions in the application project. However, at any given point in time, you are probably interested in reviewing a portion of the Universe pertinent to your analysis. There are multiple ways to filter the Universe. You setup the filter by clicking on the icon in top left corner of Universe.
Filter based on Test Suite
Select a test suite on which you would like to filter the universe. Sidebar will only show the Scenarios, Contexts and Actions that belong to the specific test suite.
Filter based on custom fields
You can filter the universe based on complex filter criterion using custom flags for various entities. This can be done at a Scenario level, Action level or Context level. In case the filter is applied using Action or Context fields, then the sidebar only shows the list of Contexts and Actions.
Note that when you use multiple filters, they are combined with an "AND" operation. If you specify multiple values against a given filter flag, then these values are "OR"ed.