Create New Project: Choose Project Directory
On this page of the wizard, specify the location of the files, appoint the project root, and configure the structure of the project to be created. The project root is the folder which is the parent for all the project sources. By default, all subfolders in this folder are treated as sources and their files are involved in indexing, searching, parsing, code completion, etc. Use the icons on the toolbar ro change this status.
If your sources are located in several independent parent folders, create a project in one of these folders and configure other sources as additional content roots on the Directories page of the Settings dialog box.