Xcode 4中的活动构建配置设置在哪里

I have 3 configurations in my project (Debug, Distribution_AdHoc and Distribution_AppStore). In Xcode 3 we had a list to choose device, version, configuration and target before build and run. Now with Xcode 4 we only have the device kind and version in this list. This bring my two questions:I have 3 configurations in my project (Debug, D