diff --git a/README.md b/README.md
index 1642ffb..4c6cc8b 100644
--- a/README.md
+++ b/README.md
@@ -106,6 +106,13 @@ Please don't run EAF with root user, root user just can access DBus's system bus
 
 ## Settings
 
+### Customization
+    You can easily configure variables that EAF Python side uses with the Emacs Lisp function `eaf-setq`. Check the full list of configurable variables with `C-h v eaf-var-list`.
+#### EAF Camera
+    The default directory to store images taken by EAF Camera is `~/Downloads`. To change it, put the following in your `.emacs`
+    ```Elisp
+    (eaf-setq 'eaf-camera-save-path "~/Downloads")
+    ```
 ### Proxy
 If you can't access most awesome internet services like me, you perhaps need proxy settings like below:
 
diff --git a/eaf.el b/eaf.el
index 8deefe1..3aa69d0 100644
--- a/eaf.el
+++ b/eaf.el
@@ -7,7 +7,7 @@
 ;; Copyright (C) 2018, Andy Stewart, all rights reserved.
 ;; Created: 2018-06-15 14:10:12
 ;; Version: 0.3
-;; Last-Updated: Tue Nov 26 23:50:59 2019 (-0500)
+;; Last-Updated: Wed Nov 27 02:49:28 2019 (-0500)
 ;;           By: Mingde (Matthew) Zeng
 ;; URL: http://www.emacswiki.org/emacs/download/eaf.el
 ;; Keywords:
@@ -135,7 +135,7 @@
   '((eaf-camera-save-path . "~/Downloads"))
   "The alist storing user-defined variables that's shared with EAF Python side.
 
-Use `eaf-setq' to modify this list.")
+Try not to modify this alist directly. Use `eaf-setq' to modify instead.")
 
 (defvar eaf-find-alternate-file-in-dired nil
   "If non-nil, when calling `eaf-file-open-in-dired', EAF unrecognizable files will be opened