Grants moderator status to a character on the selected event's invite/signup list. Moderators can change the status of characters on the invite/signup list and invite more characters, but cannot otherwise edit the event.
See also Calendar functions.
Signature:
CalendarEventSetModerator(index)
Arguments:
index- Index of a character on the event's invite list (between 1 and CalendarEventGetNumInvites()) (number)