It looks like the normal Duplicator - only blue instead of green.
You hit a brick and it says on your screen: Events Dupicated, then it says how many events you duplicated.
Then you hit another brick and it adds the events to it and it will say on your screen: Events Have Been Duplicated, then it says how many events you duplicated.
To go back to normal mode simply unequip it.
If the brick you are adding the events to already has events on it, it will still keep the old ones, and just add the new ones.
Good Idea?