| File | 
      New: open a new, empty, window;
      Open: open a new file, existing project will be overwritten;
      Save: save a project in current path;
      Save as: save the project in an arbitrary path; 
      Export: save the project in a image format (PostScript or PNG);
      Quit: Exit from the program.
     | 
  | Edit: | 
      Paste: paste il contenuto  of current buffer;
      Undo: Cancel last operation;
      Erase: delete the element(s) selected.
     | 
  | Configuration: | 
      Set Values: configure UI;
      Reset to default: Revert to built-in configuration parameters.
     | 
  | Plug-in: | Contenuto may vary | 
  | Help: | 
      About: this manual;
      No warranty: Display a (no) Warranty notice.
     |