You have to have a copy of the tokens already on the destination map, as far as I understand. That is the way that I do it anyways. I have my players on a "waiting" map (basically blank map) and have them set up a general marching order. Then I copy the tokens and switch to the destination map, where I paste them where I want 'em. At that point I move the ribbon and, in the case of a bigger map, will SHIFT-PING them to center their screens on their tokens.