diff --git a/Readme.org b/Readme.org
index 39bb541..ebd4c38 100644
--- a/Readme.org
+++ b/Readme.org
@@ -2,7 +2,7 @@
 #+Author: Yujie Wen
 #+Email: yjwen.ty@gmail.com
 
-#+OPTIONS: reveal_center:t reveal_progress:t reveal_history:nil reveal_control:t reveal_mathjax:t num:nil
+#+OPTIONS: reveal_center:t reveal_progress:t reveal_history:nil reveal_control:t reveal_mathjax:t reveal_rolling_links:t reveal_keyboard:t reveal_overview:t num:nil
 #+REVEAL_TRANS: cube
 #+REVEAL_THEME: moon
 #+REVEAL_HLEVEL: 2
@@ -160,7 +160,7 @@ $ git clone https://github.com/yjwen/org-reveal.git
 ** Select Theme and Transition
 
     Themes and transition styles are set globally throughout the whole
-    file by setting options =REVEAL_THEME= and =REVEAL_TRANS=.
+    file by setting options =REVEAL_THEME=, =REVEAL_TRANS=, and =REVEAL_SPEED=.
 
     For an example, please check the heading part of this document.
 
@@ -221,10 +221,10 @@ $ git clone https://github.com/yjwen/org-reveal.git
 
     - =#+OPTIONS= tags:\\
       =reveal_control=, =reveal_progress=, =reveal_history=,
-      =reveal_center=
+      =reveal_center=, =reveal_rolling_links=, =reveal_keyboard=, =reveal_overview=
     - Custom variables:\\
       =org-reveal-control=, =org-reveal-progress=,
-      =org-reveal-history=, =org-reveal-center=
+      =org-reveal-history=, =org-reveal-center=, =org-reveal-rolling-links=, =org-reveal-keyaboard, =org-reveal-overview=
 
     For an example, please refer to the heading part of this document.
 
diff --git a/ox-reveal.el b/ox-reveal.el
index 79a0192..15e3dd0 100644
--- a/ox-reveal.el
+++ b/ox-reveal.el
@@ -43,8 +43,12 @@
     (:reveal-progress nil "reveal_progress" org-reveal-progress t)
     (:reveal-history nil  "reveal_history" org-reveal-history t)
     (:reveal-center nil "reveal_center" org-reveal-center t)
+    (:reveal-rolling-links nil "reveal_rolling_links" org-reveal-rolling-links t)
+    (:reveal-keyboard nil "reveal_keyboard" org-reveal-keyboard t)
+    (:reveal-overview nil "reveal_overview" org-reveal-overview t)
     (:reveal-root "REVEAL_ROOT" nil org-reveal-root t)
     (:reveal-trans "REVEAL_TRANS" nil org-reveal-transition t)
+    (:reveal-speed "REVEAL_SPEED" nil org-reveal-transition-speed t)
     (:reveal-theme "REVEAL_THEME" nil org-reveal-theme t)
     (:reveal-hlevel "REVEAL_HLEVEL" nil nil t)
     (:reveal-mathjax nil "reveal_mathjax" org-reveal-mathjax t)
@@ -99,6 +103,12 @@ can be include."
   :group 'org-export-reveal
   :type 'string)
 
+(defcustom org-reveal-transition-speed
+  "default"
+  "Reveal transistion speed."
+  :group 'org-export-reveal
+  :type 'string)
+
 (defcustom org-reveal-theme
   "default"
   "Reveal theme."
@@ -125,6 +135,21 @@ can be include."
   :group 'org-export-reveal
   :type 'boolean)
 
+(defcustom org-reveal-rolling-links t
+  "Reveal use rolling links."
+  :group 'org-export-reveal
+  :type 'boolean)
+
+(defcustom org-reveal-keyboard t
+  "Reveal use keyboard navigation."
+  :group 'org-export-reveal
+  :type 'boolean)
+
+(defcustom org-reveal-overview t
+  "Reveal show overview."
+  :group 'org-export-reveal
+  :type 'boolean)
+
 (defcustom org-reveal-mathjax nil
   "Enable MathJax script."
   :group 'org-export-reveal
@@ -289,14 +314,22 @@ custom variable `org-reveal-root'."
         			progress: %s,
         			history: %s,
         			center: %s,
+        			rollingLinks: %s,
+        			keyboard: %s,
+        			overview: %s,
 
         			theme: Reveal.getQueryHash().theme, // available themes are in /css/theme
-        			transition: Reveal.getQueryHash().transition || '%s', // default/cube/page/concave/zoom/linear/fade/none\n"
+        			transition: Reveal.getQueryHash().transition || '%s', // default/cube/page/concave/zoom/linear/fade/none
+        			transitionSpeed: '%s',\n"
              (if (plist-get info :reveal-control) "true" "false")
              (if (plist-get info :reveal-progress) "true" "false")
              (if (plist-get info :reveal-history) "true" "false")
              (if (plist-get info :reveal-center) "true" "false")
-             (plist-get info :reveal-trans))
+             (if (plist-get info :reveal-rolling-links) "true" "false")
+             (if (plist-get info :reveal-keyboard) "true" "false")
+             (if (plist-get info :reveal-overview) "true" "false")
+             (plist-get info :reveal-trans)
+             (plist-get info :reveal-speed))
      (format "
         			// Optional libraries used to extend on reveal.js
         			dependencies: [