This section is dedicated to the Project Exlorer UI and functionality.
The Project Explorer pane shows a tree-like structure of your tests in the project. Tests can be added directly to the project, or logically grouped in folders. Folders in turn, can be nested forming hierarchical representation of your testing solution. Tests and folders can be added either through the dedicated buttons located right above the project icon, or by a context menu shown on right click of a test, folder or project: