It would be very nice if you could add a directory to Module-Sources directly via the Contextmenu (right-click on directory) in the Project-View. The indirection via "Project-Settings" and navigating to the correct folder is very time-consuming, compared to the possibility of adding it directly from the Project View. The Contexmenu should offer to add it to Sources or Test-Sources and, if you have a multi-module project, let you choose the according module.