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In the Portal 2 Perpetual Testing Initiative (the map builder) you can test out your maps by going to the Game View. If you're building a co-op map, the Game View is automatically split screen, each controlled by one robot. How do I switch control of robots to test my map? Currently I can only control Atlas, but I need to switch over to P-body to complete the map. He's just sitting there, stuck at the beginning of the level.

I've tried using gestures, pinging, and keyboard shortcuts, but nothing has worked so far.

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up vote 2 down vote accepted

Found the answer in the Steam Users' Forums.

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The default key for that is 1. You can change it from the options.

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I've tried that and it didn't work. Are you using Mac or Windows? Also, please elaborate further about how to change it in the options. – chharvey Mar 2 '13 at 22:52

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