With the Preferences dialog, you can set the global properties of the Gene Net mode. The settings are stored as user preferences and also apply the subsequent occasion you start the application. A change in the Preferences dialog is effective immediately and applies to new elements, canvas windows and simulations runs that are executed after the change unless the setting is one designated for the whole application, such as grid size. With such cases, the setting applies to all (already existing and new) canvas windows. The Restore Defaults button restores the default (factory) settings for the selected branch of the option tree.