Can i change path of TestTools.UITest.Dll in wpf?

Hi sorry for that question but, it is possible to change location reference OF TEST dll???

I have VS 2015 enterprise, i copy all DLL test in my subversion folder, add the reference but VS don't change the path... the path is alwais : "C:\Program Files (x86)\Microsoft Visual Studio 14.0\Common7\IDE\PublicAssemblies\Microsoft.VisualStudio.TestTools.UITest.****.dll

could you help me please?

path issue