File | Settings | Project Settings | Directories
Use this dialog box to configure content roots of a project.
|Add Content Root||Click this button and select a new content root folder in the dialog that opens.|
|Remove Content Entry||Click this button to have the selected root removed from the list.|
|Test||Click this button to mark the selected folder as a test root.|
|Excluded||Click this button to mark the selected folder as an excluded root.|
|Resource Root||Click this button to enable PhpStorm to complete relative paths to resources under the selected folder.|
|Include||Click this button to have the exclusion mark removed from the selected excluded content root.|