diff --git a/README.md b/README.md
index 096d225..182638f 100644
--- a/README.md
+++ b/README.md
@@ -121,11 +121,14 @@ let g:fzf_colors =
 
 #### Command-local options
 
-The right-hand-side values are the default values for the options.
-
 ```vim
+" [Files] Extra options for fzf
+"         e.g. File preview using CodeRay (http://coderay.rubychan.de/)
+let g:fzf_files_options =
+  \ '--preview "(coderay {} || cat {}) 2> /dev/null | head -'.&lines.'"'
+
 " [Buffers] Jump to the existing window if possible
-let g:fzf_buffers_jump = 0
+let g:fzf_buffers_jump = 1
 
 " [[B]Commits] Customize the options used by 'git log':
 let g:fzf_commits_log_options = '--graph --color=always --format="%C(auto)%h%d %s %C(black)%C(bold)%cr"'
@@ -134,7 +137,7 @@ let g:fzf_commits_log_options = '--graph --color=always --format="%C(auto)%h%d %
 let g:fzf_tags_command = 'ctags -R'
 
 " [Commands] --expect expression for directly executing the command
-let g:fzf_commands_expect = 'ctrl-x'
+let g:fzf_commands_expect = 'alt-enter,ctrl-x'
 ```
 
 #### Advanced customization using autoload functions
diff --git a/autoload/fzf/vim.vim b/autoload/fzf/vim.vim
index 4726655..9e3c5cf 100644
--- a/autoload/fzf/vim.vim
+++ b/autoload/fzf/vim.vim
@@ -191,7 +191,7 @@ endfunction
 " Files
 " ------------------------------------------------------------------
 function! fzf#vim#files(dir, ...)
-  let args = {'options': '-m'}
+  let args = {'options': '-m '.get(g:, 'fzf_files_options', '')}
   if !empty(a:dir)
     if !isdirectory(expand(a:dir))
       return s:warn('Invalid directory')
diff --git a/doc/fzf-vim.txt b/doc/fzf-vim.txt
index 0000972..57c3655 100644
--- a/doc/fzf-vim.txt
+++ b/doc/fzf-vim.txt
@@ -151,6 +151,11 @@ Global options~
 Command-local options~
 
 >
+    " [Files] Extra options for fzf
+    "         e.g. File preview using coderay (http://coderay.rubychan.de/)
+    let g:fzf_files_options =
+      \ '--preview "(coderay {} || cat {}) 2> /dev/null | head -'.&lines.'"'
+
     " [Buffers] Jump to the existing window if possible
     let g:fzf_buffers_jump = 1
 
@@ -162,7 +167,7 @@ Command-local options~
     let g:fzf_tags_command = 'ctags -R'
 
     " [Commands] --expect expression for directly executing the command
-    let g:fzf_commands_expect = 'ctrl-x'
+    let g:fzf_commands_expect = 'alt-enter,ctrl-x'
 <
 
 Advanced customization using autoload functions~