> Is there a good alternative for editing several places in the same
> file at once?  E.g., a C++ header file with the class part with
> declarations at the top and the inlined member definitions at the end of
> the same file.  I find myself losing one of my places when I have to
> switch to a different buffer and back again.

You might want to try setting switch-to-buffer-preserve-window-point to t.