I just figured the event was too complicated for that and was something more than "guy that says hello" or something (I took the request too literally, I think - move a single event to a target location on a map load)

Now that I think about it, if there's only two possible positions for this event an ON/OFF switch is the way to go about it, though for having more than two places you're using variables (and watch out for overlapping - unless you enable event overlap, but that's on by default anyway and few people even know it's an issue)

Though I really hate having two events do the same thing, so I'd do it the above way anyway