Yep, I am also using org-mode with icicles. Made several mods to help with that. I use icicles for searching headers or text content all the time.  Interesting is the possibility to open a section (subtree) in an independent buffer after finding it, with one command.  I enclose the code here, plus the link to a gist containing the code.  

Gist link: https://gist.github.com/iani/8695954
Gist name: org-icicles

Iannis Zannos


(add-hook 'org-mode-hook
          (lambda () (imenu-add-to-menubar "Imenu")))
(setq org-imenu-depth 3)

(defun org-icicle-occur ()
  "In org-mode, show entire buffer contents before running icicle-occur.
 Otherwise icicle-occur will not place cursor at found location,
 if the location is hidden."
  (interactive)
  (show-all)
  (icicle-occur (point-min) (point-max))
  (recenter 3))

(eval-after-load 'org
  '(define-key org-mode-map (kbd "C-c C-'") 'org-icicle-occur))
(eval-after-load 'org
  '(define-key org-mode-map (kbd "C-c i o") 'org-icicle-occur))
(defun org-icicle-imenu (separate-buffer)
  "In org-mode, show entire buffer contents before running icicle-imenu.
Otherwise icicle-occur will not place cursor at found location,
if the location is hidden.
If called with prefix argument (C-u), then:
- open the found section in an indirect buffer.
- go back to the position where the point was before the command, in the
  original buffer."
  (interactive "P")
  (show-all)
  (let ((mark (point)))
    (icicle-imenu (point-min) (point-max) t)
    (cond (separate-buffer
           (org-tree-to-indirect-buffer)
           (goto-char mark))
          (t (recenter 4)))))

(eval-after-load 'org
  '(define-key org-mode-map (kbd "C-c C-=") 'org-icicle-imenu))
(eval-after-load 'org
  '(define-key org-mode-map (kbd "C-c i m") 'org-icicle-imenu))

;; install alternative for org-mode C-c = org-table-eval-formula
;; which is stubbornly overwritten by icy-mode.
(eval-after-load 'org
  '(define-key org-mode-map (kbd "C-c C-x =") 'org-table-eval-formula))

;; this is a redundant second try for the above, to be removed after testing:
(add-hook 'org-mode-hook
          (lambda ()
            (local-set-key (kbd "C-c M-=") 'org-table-eval-formula)))

;;; ???? Adapt org-mode to icicle menus when refiling (C-c C-w)
;;; Still problems. Cannot use standard org refiling with icicles activated!
(setq org-outline-path-complete-in-steps nil)

(add-hook 'org-mode-hook (lambda () (prelude-mode -1)))

(defun org-refile-icy (as-subtree &optional do-copy-p)
  "Alternative to org-refile using icicles.
Refile or copy current section, to a location in the file selected with icicles.
Without prefix argument: Place the copied/cut section it *after* the selected section.
With prefix argument: Make the copied/cut section *a subtree* of the selected section.

Note 1: If quit with C-g, this function will have removed the section that
is to be refiled.  To get it back, one has to undo, or paste.

Note 2: Reason for this function is that icicles seems to break org-modes headline
buffer display, so onehas to use icicles for all headline navigation if it is loaded."
  (interactive "P")
  (outline-back-to-heading)
  (if do-copy-p (org-copy-subtree) (org-cut-subtree))
  (show-all)
  (icicle-imenu (point-min) (point-max) t)
  (outline-next-heading)
  (unless (eq (current-column) 0) (insert "\n"))
  (org-paste-subtree)
  (if as-subtree (org-demote-subtree)))

(defun org-copy-icy (as-subtree)
  "Copy section to another location in file, selecting the location with icicles.
See org-refile-icy."
  (interactive "P")
  (org-refile-icy as-subtree t))

(eval-after-load 'org
  '(define-key org-mode-map (kbd "C-c i r") 'org-refile-icy))
(eval-after-load 'org
  '(define-key org-mode-map (kbd "C-c i c") 'org-copy-icy))





On Wed, Jan 29, 2014 at 9:48 PM, Thomas S. Dye <tsd@tsdye.com> wrote:


Aloha Bastien,

Bastien <bzg@gnu.org> writes:

> Hi Thomas,
>
> tsd@tsdye.com (Thomas S. Dye) writes:
>
>> Also, this is my first time trying to decode a syntax table, so caveat
>> emptor.
>
> Yes -- when doing C-u C-x on { in fundamental-mode I read
>
> Character code properties: customize what to show
>   name: LEFT CURLY BRACKET
>   old-name: OPENING CURLY BRACKET
>   general-category: Ps (Punctuation, Open)
>                         ^^^^^^^^^^^
>
> and this is the same in org-mode, as org-mode does not modify the
> syntax of this character.
>
> So I think `{' is generally a considered a "punctuation" character
> (compare it to the `*' char, which also falls into two categories,
> "punctuation" and "other".)

Then "punctuation" has two senses, one generic and another specific. To
my mind, the emacs guideline is ambiguous unless there is some
convention about which sense is meant in this case.  I guess it would be
possible to look at the code to figure this out, but I'm not well
equipped to do that.

All the best,
Tom

--
Thomas S. Dye
http://www.tsdye.com