title: Is it possible to create an empty C# solution in Visual Studio 2015
body: <p>In Visual Studio 2015 for C#, when starting with empty, I didn't see that I can create a new solution, but only a new project.</p>
  
  <ul>
  <li><p>If that is true, why is that? How can I create a solution then, to include one or more  existing projects?</p></li>
  <li><p>If not true, how can I create a solution starting from empty?</p></li>
  </ul>
  
  <p>Thanks.</p>