A small issue but an inconvenient one for calendar scheduling is that several holidays occur on specific days of the year such as the 2nd Sunday in April or the 3rd Monday in June, Mothers Day, Presidents Day in the US, etc... a not uncommon type of holiday scheduling around the world. While I see you can schedule a repeating event on a weekly basis or monthly basis for such schedules, i.e. every Month on the second Sunday, I don't see any way to do this on a yearly basis to capture these holidays. Short of exporting an ics file and editing it (an annoyance to most users and beyond the ability of many) I don't see a way to do this. It would be a nice feature to have available.