In Refactoring menu it would be nice to add following commands:

for methods and functions (C/C++):

- Create implementation: if invoked for function in Header file - creates empty implementation function in corresponding source file
- Create declaration: if invoked for function in Source File - creates declaration in corresponding header file, e.g. void foo();

- Move implementation to Source File: if invoked for function in Header File - corresponding implementation of inline function moves to Source file, and function become not inline.
- Make this function inline: if invoked for function in Source File - move inplementation of function to Header file, and function become inline.

- Document method: if invoked for function - creates empty doxygen or javadoc style comment for function.