Move to Folder Refactoring

I am attemptig to combine a ton of classes from a few projects to another, new, project, tyring to collapse hundreds of projects into more manageable pieces and limit dependencies. I can do this fairly easily with ReSharper but it is not refactoring namespaces. So, after I move several CS files, I have to visit hundreds of files that referenced the old namespace. Is there a better way to do this with ReSharper? 

Example:

Source projects 

• MyApp.BusinessEntities
• MyApp.BusinessRules
• MyApp.BusinessSystem

New Project 

• MyApp.Business

I want the three Source projects above moved to MyApp.Business.