title: Replace usage of a class in a specific project
body: <p>I'm using VS2010 with Resharper 5.1.</p>
  
  <p>I have two projects, a library project (Lib) and an application project (App), App references Lib. </p>
  
  <p>Lib contains a class X which is used in both App and Lib. In App i now want to replace all usages of X with class Y. In my case Y is unrelated to X, but it could inherit from X if it makes refactoring easier.</p>
  
  <p>My current plan to use the "Find usages" feature, group by project and change the usages one by one. Is there an easier/automated way to do this?</p>