Online Help System Avrora has an extensive built-in help system that is accessible directly from the command line. Input formats, actions, monitors, and other extension points each have a subcategory that explains their usage, and each command line option is documented in detail, including its type and default value. The complete help system is mirrored on this website for your convenience. For more information about individual help items that are available: all - A listing of all subcategories. actions - A listing of all actions, with descriptions. inputs - Help for supported input formats. monitors - Lists all supported monitors, including short descriptions. simulations - Help for different simulation types. When Avrora is run without any parameters or if the -help option is specified without any parameters, it will print out a main help page that include the main options and a list of subcategories.