Selects a calendar event for viewing/editing
See also Calendar functions.
Signature:
CalendarOpenEvent(monthOffset, day, index)
Arguments:
monthOffset- Month to query relative to the calendar's currently displayed month (i.e. 0 for current month, 1 for next month, -1 for previous month) (number)day- Day of the month to query (number)index- Index of an event on the given day (from 1 to CalendarGetNumDayEvents()) (number)