The keyboard shortcuts for file manipulations are therefore always directed at file pairs. When typing names in the Fileselector, you must NOT include file extensions like .orc or .sco. That is taken care of by the program. Some of this you can change through the preferences mechanism. You will be prompted for a new name if you try.
Main directories are accessible through five buttons at the bottom.
You can also rename and delete files here. The Play button will resume normal operation after the play command in the top window has been stopped or has finished playing. The Preferences mechanism. If it does not exist, the preference file is automatically created the first time you launch Cynthia. Default options for Csound presents a similar menu to the Options menu in the main window.