How to add testers to existing wp7 beta app

I submitted an app to the new windows phone beta marketplace with one tester live id.

Now I want to add some more testers. I can't see any way of updating an e开发者_运维知识库xisting beta app on the app hub.

Any ideas?

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Now the App Hub is behaving itself I managed to find out how to do this.

Click View all submitted apps

Set View to Submitted

Click App to update

Click Update Testers