Thanks guys. What I'm trying to do is run the DM side of a game from a laptop, and join the game through the Ipad app as a player, so I can project that view down onto a physical surface and use that as mapping for an in person game. So, I don't want to switch the computer DM view to "re-join as player". When I log in as a player on the Ipad app, I click "join game", and the only option it gives is this precise wording: "Ask your GM to press the Show Barcode button in the MY Settings panel of the game. You can then press the button below to scan the barcose to join the game." And there's a Scan Barcode button, and a Cancel button below it.