This command lets you switch the member buffer to another class. It reads the name of the new class from the minibuffer with completion.
This is the same command as C c but restricts the classes shown in the completion list to immediate base classes, only. If only one base class exists, this one is immediately shown in the minibuffer.
Same as C b, but for derived classes.
Switch to the previous class in the class hierarchy on the same level as the class currently displayed.
Switch to the next sibling of the class in the class tree.