How to configure 3 way merge feature on compare in Visual Studio 2015 : <p><strong>Problem:</strong> The default diff/ merge tool in visual studio 2015 (and previous versions) does not allow merging when you compare a file. It only allows you to see differences. The only occasion I'm aware of the 3 way merge option being enabled is when there is a merge conflict.</p>

<p>I want to see the 3 way merge option on every instance of the diff tool in Visual Studio.</p>

<p><strong>Notes:</strong> I'm definitely not looking for an alternative tool or a 'work around' on this. I have been happily using <a href="http://blog.degree.no/2013/12/using-winmerge-as-the-default-diffmerge-tool-in-visual-studio-2012/" rel="noreferrer">WinMerge</a> as my merge tool which allows merging anytime you compare. I really like the vs diff tool's 3 way option and being able to use it any time I want would be a nice boost to my work flow.</p>

<p>Thanks!</p>
