In my case, I wanted to do 2 things. First, remove .Core from the namespaces (I already updated the Project Property pane to set the default namespace to MyCompany.MyProject). Second, I wanted to move MyCompany.MyProject.Core.Parsing into the Importing namespace (since it’s actually a subcomponent of the Importing process). Both of these actions took a matter of seconds.
Logically enough, ReSharper has hooked into the much underappreciated Visual Studio Class View (Ctrl+Shift+C)
Originally I thought I would have to visit each namespace to remove the “.Core” – but ReSharper went ahead and preserved my hierarchy. By renaming the lower-level namespace, all higher-level namespaces were updated automatically. A small but very welcomed feature, especially when refactoring larger code-bases.
P.S. I also noticed that another way to accomplish the same thing, is to right-click on the namespace in any .cs file and select the Refactor menu from there. (Or Ctrl+R, R). Not really sure why I never tried that on a namespace before.