From mboxrd@z Thu Jan  1 00:00:00 1970
From: Thorsten Jolitz <tjolitz@gmail.com>
Subject: Re: fold all drawers in a buffer?
Date: Fri, 01 Nov 2013 16:52:29 +0100
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Matt Price <moptop99@gmail.com> writes:

> Is there a command to fold all drawers in a buffer (all property
> drawers would be enough, actually)? Or a suggestion for how to do
> this?   Thanks!

They might exist (with me unaware of them), but the following pair of commands
does the job, at least with this minimal test org snippet:

* A
  :PROPERTIES:
  :CUSTOM_ID: a1
  :END:
* B
  :PROPERTIES:
  :CUSTOM_ID: B1
  :END:

#+begin_src emacs-lisp
  (defun org-show-drawers ()
    "Unfold all drawers in buffer"
    (interactive)
    (save-excursion
      (goto-char (point-min))
      (while (not (eobp))
        (and (org-at-drawer-p)
             (org-element-property :hiddenp (org-element-at-point))
             (org-cycle))
        (forward-char))))
  
  (defun org-hide-drawers ()
    "Fold all drawers in buffer"
    (interactive)
    (save-excursion
      (goto-char (point-min))
      (while (not (eobp))
        (and (org-at-drawer-p)
             (not (org-element-property :hiddenp (org-element-at-point)))
             (org-cycle))
        (forward-char))))
#+end_src

#+results:
: org-hide-drawers

-- 
cheers,
Thorsten