title: How to PopAsync more than 1 page in Xamarin Forms Navigation?
body: <p>In my app I'm pushing pages using a <code>NavigationPage</code> and at some stage I want to go back to a previous page in the stack. This is my structure:</p>
  
  <p>NavigationPage > Page1 > Page2 > Page3 > Page4</p>
  
  <p>How can I <code>PopAsync</code> back to Page2 directly from Page4 without going through Page3?</p>