diff --git a/doc/DOCUMENTATION.md b/doc/DOCUMENTATION.md
index 9b92fee84..63da08748 100644
--- a/doc/DOCUMENTATION.md
+++ b/doc/DOCUMENTATION.md
@@ -57,6 +57,8 @@
- [Reserved prefix command for user](#reserved-prefix-command-for-user)
- [Escaping](#escaping)
- [Executing Vim, Emacs and shell commands](#executing-vim-emacs-and-shell-commands)
+ - [Helm](#helm)
+ - [Helm micro-state](#helm-micro-state)
- [Navigating](#navigating)
- [Point/Cursor](#pointcursor)
- [Smooth scrolling](#smooth-scrolling)
@@ -940,13 +942,47 @@ sequences are not optimal for `Spacemacs`. Indeed it is very easy in
:---------------:|------------------------------------------------------------------
Vim (ex-command) | `:`
Emacs (M-x) | SPC :
-Shell | SPC ! or just !
The command key `:` can be easily changed with the variable
`dotspacemacs-command-key` of your `~/.spacemacs`. Note that is will change both
`:` and `SPC :` bindings to keep the symmetry between Vim and Emacs. A good
key can be `,` for example.
+## Helm
+
+`Spacemacs` is powered by [Helm][helm-link] which is an incremental completion
+and selection narrowing framework.
+
+`Helm` is the central control tower of `Spacemacs`, it is used to manage
+buffers, projects, search results, configuration layers, toggles and more...
+
+Mastering `Helm` will make you a `Spacemacs` power user. Do not hesitate
+to read the [Helm documentation wiki][helm-doc].
+
+### Helm micro-state
+
+`Spacemacs` defines a [micro-state](#micro-states) for `Helm` to make it
+work like [Vim's Unit][] plugin.
+
+Initiate the micro-state with TAB while in a `Helm` buffer. Use
+TAB again to exit from the micro-state (actually, like with any
+micro-state, pressing any key that is not bound to the micro-state key map
+will turn-off the micro-state).
+
+Key Binding | Description
+--------------------|------------------------------------------------------------
+TAB | initiate the micro-state
+g | go to first candidate
+G | go to last candidate
+h | go to previous page
+j | select next candidate
+k | select previous candidate
+l | go to next page
+t | mark current candidate
+T | mark all candidates
+v | execute persistent action
+Any other key | leave the micro-state
+
## Navigating
### Point/Cursor
@@ -2077,7 +2113,8 @@ developers to elisp hackers!
[keychords]: http://www.emacswiki.org/emacs/KeyChord
[centered-cursor]: http://www.emacswiki.org/emacs/centered-cursor-mode.el
[ace-jump]: https://github.com/winterTTr/ace-jump-mode
-[helm]: https://github.com/emacs-helm/helm
+[helm-link]: https://github.com/emacs-helm/helm
+[helm-doc]: https://github.com/emacs-helm/helm/wiki
[popwin]: http://www.emacswiki.org/emacs/PopWin
[golden-ratio]: https://github.com/roman/golden-ratio.el
[solarized-theme]: https://github.com/bbatsov/solarized-emacs
@@ -2121,6 +2158,7 @@ developers to elisp hackers!
[evil-numbers]: https://github.com/cofi/evil-numbers
[evil-org-mode]: https://github.com/edwtjo/evil-org-mode
[evil-lisp-state]: https://github.com/syl20bnr/evil-lisp-state
+[Vim's Unit]: https://github.com/Shougo/unite.vim
[git-gutter]: https://github.com/syohex/emacs-git-gutter-fringe
[nose]: https://github.com/nose-devs/nose/
[nose.el]: https://github.com/syl20bnr/nose.el
diff --git a/spacemacs/packages.el b/spacemacs/packages.el
index 775e4633a..865a5f01d 100644
--- a/spacemacs/packages.el
+++ b/spacemacs/packages.el
@@ -1228,10 +1228,6 @@ which require an initialization must be listed explicitly in the list.")
(define-key map "l" 'helm-next-page)
(define-key map "t" 'helm-toggle-visible-mark)
(define-key map "T" 'helm-toggle-all-marks)
- ;; not sure if there's a better way to do this
- (define-key map "/" (lambda ()
- (interactive)
- (execute-kbd-macro [?\C-s])))
(define-key map "v" 'helm-execute-persistent-action)
map) t 'spacemacs/on-exit-helm-micro-state))