Refactor - Add definition to all unimplemented methods

When I'm done creating some class definition and I'm about to start the implementation, there's a lot of clicking awaiting me - I have to:

1. Click on method name
2. Hover to refactor menu
3. Wait for submenu to appear
4. Click add definition in foo.cpp
5. Repeat the above for all new methods

I do believe this menu item should exist:

In case it was unclear: