title: Xamarin.Mac project in a Xamarin.Forms (Portable) solution
body: <p>I'm setting up a new Xamarin.Forms (Portable) solution in Visual Studio 2015. The goal is to deploy the application on Windows, OSX, iOS and Android. So far, in the solution I see the projects XamarinApp (Portable), XamarinApp.Droid, XamarinApp.iOS and XamarinApp.UWP. </p>
  
  <p>Is there a way to add a XamarinApp.Mac project to the solution Xamarin.Forms solution?
  Or do all Xamarin.Mac projects have to be developed on a mac using Xamarin Studio/Visual Studio for Mac, as I see standalone projects being created using this method. And if this is the case, is there a way to share the codebase from the project created on my PC that is already targeting Android, UWP and iOS?</p>