You will need to create at least one root folder in the Manage Roots dialog, shown below, before you can create a project. You should note that root folders can hold multiple project folders, but that nested project subfolders are not supported. The Organizer is a naive, flat solution.
Manage Roots dialog
The Manage Roots dialog appears.
The new root appears in the Manage Roots dialog.
The Manage Roots dialog appears.
NOTE Whenever you delete a root folder, all the data contained in the project folders will be deleted.