Visual Studio settings: How to set vertical split

Question

I am working with C#(WPF) and when I open XAML file it splits to Vertical every time, I'm changing to Horizontal, but when I reopen again it still Vertical, is it possible to set default to Horizontal view.
Examples:
First is Vertical view
Second is Horizontalview

Answer 1

Custom layouts are a feature of the upcoming Visual Studio 2015. Users will be able to save a selection of custom layouts and save/load these.

Answer 2

This is late answer, since this feature is available on Visual Studio 2015. For setting the Xaml code view to Vertical or Horizontal you can see steps below: