如何使用Azure云服务项目设置设置NewRelic AppName

I've developed an ASP.net MVC website that is published to Azure using Cloud Services. I publish this website to two separate cloud services, once for staging and once as the live site. I've integrated NewRelic using the Azure Management Portal and nuget package. The problem is that both of these sites are logging to the same NewRelic instance when I'd like to be able to identify them by their own individual apps in NewRelic. Since both sites use the same web.config I'd like to be able to specify the app name in the Cloud Service Project Settings - so that I can set a different app name for each deployment. The nearest I've found is I've developed an ASP.net MVC website that is p