[O] Deactivate babel source block

[Michael Bach]

Dear org-mode Users and Developers,


I am looking for a nice way to deactivate a babel source block with
point being anywhere on it. Imagine e.g. C-c C-v C-w to say "I want to
toggle execution/tangling for this block".

Background: I have the .emacs setup in a literate org-mode file where I
am testing new emacs packages.  Now many blocks represent specific
features that I want to be activated / deactivated.  This should ideally
behave like the other source code functions (i.e. C-c C-v family).

My naive approach as elisp noob was:
#+begin_src emacs-lisp
  (defun my-org-babel-deactivate ()
    (interactive)
    (org-edit-special)
    (mark-whole-buffer)
    (comment-region)
    (org-edit-src-exit))
#+end_src

Apart from it not working (Wrong number of arguments), this would have
been a dirty one in any case.  Now I thought there must be a better way
by setting/un-setting the respective header arguments in an automated
way.  Is this already possible with org-mode version 8.2?

Best Regards,
Michael