If a folder from anywhere in the Finder is dropped on the application icon, Simple Cataloger will automatically catalog that folder. This works when Simple Cataloger is running or not. When the cataloger has completed, it will save the catalog file to the Desktop folder with the standard folder name and date. Opening the Preferences window will show the option of having the application quit when it is finished.
Using drag and drop cataloging and automatic quitting allows for the most convenient cataloging possible.