The Move to Region (also known as Member Mover) CodeRush feature extends the Member drop down menu with a menu item that allows you to move the active member to a region according to your preference:
The Move Type To File refactoring allows users to move a given class, structure, interface, enumeration or delegate to a separate file. It is available when there are two or more types in the current source file.
Refactoring moves a type with a name that differs from the file name to a new source file. All comments, attributes, and XML doc comments relating to the type are moved with the type. The file will be located in the same folder as the current file and automatically added to the project. The name of the new file is based on the type’s name on which refactoring is applied.