title: Design-time T4 templates in ASP.NET 5 (VS 2015)
body: <p>I can't seem to find a way to make T4 templates in VS 2015 RTM, in an ASP.NET 5 (vNext) project.</p>
  
  <p>I even installed the <a href="https://visualstudiogallery.msdn.microsoft.com/34b6d489-afbc-4d7b-82c3-dded2b726dbc" rel="nofollow">T4 toolbox for Visual Studio 2015</a> extension, but the <code>tt</code> templates are not transformed.</p>
  
  <p>The property <code>Custom Tool</code> doesn't appear in the <code>tt</code> file properties, neither can't I find the '<em>Run Custom Tool</em>' command.</p>
  
  <p><strong>Update</strong></p>
  
  <p>The reason I want the T4 templates, is the introduction of the <code>config.json</code> file, and the pluggable configuration system, which is an awesome thing, but with the price of not having the setting properties strongly-typed.<br>
  I've read <a href="https://weblog.west-wind.com/posts/2015/Jun/03/Strongly-typed-AppSettings-Configuration-in-ASPNET-5" rel="nofollow">this</a> article that explains how to achive this, but there is still no generation. Since I have a pretty complex configuration structure, I thought about making a T4 template that will generate an <code>AppSettings</code> file. Any ideas on that are obviously welcome too.</p>