Because Activities do not have a Schedule tab ( https://blackbaudk12.ideas.aha.io/ideas/K12OC-I-2214 ), an alternative to generate an iCal feed link seemed to be available through the 'Daily Schedule Calendar' menu option. However, because this only saves the file, and is a javascript popup, we're effectively only getting the http:// link, where we would rather be able to save/copy the webcal:// link of the same kind.