diff --git a/autoload/SpaceVim.vim b/autoload/SpaceVim.vim
index 9afd4a575..68f755316 100644
--- a/autoload/SpaceVim.vim
+++ b/autoload/SpaceVim.vim
@@ -1226,7 +1226,6 @@ function! SpaceVim#end() abort
   endif
 
   if !g:spacevim_vimcompatible
-    nnoremap <silent><C-x> <C-w>x
     cnoremap <C-f> <Right>
     " Navigation in command line
     cnoremap <C-a> <Home>
@@ -1386,7 +1385,6 @@ function! SpaceVim#begin() abort
   endif
   call SpaceVim#default#options()
   call SpaceVim#default#layers()
-  call SpaceVim#default#keyBindings()
   call SpaceVim#commands#load()
 endfunction
 
diff --git a/autoload/SpaceVim/default.vim b/autoload/SpaceVim/default.vim
index 09ef61378..978ced8ce 100644
--- a/autoload/SpaceVim/default.vim
+++ b/autoload/SpaceVim/default.vim
@@ -290,8 +290,6 @@ function! SpaceVim#default#keyBindings() abort
 
   call SpaceVim#mapping#def('nnoremap <silent>','g=',':call SpaceVim#mapping#format()<cr>','format current buffer','call SpaceVim#mapping#format()')
 
-  call SpaceVim#mapping#def('nnoremap <silent>', '<C-c>', ':<c-u>call SpaceVim#util#CopyToClipboard()<cr>',
-        \ 'Copy buffer absolute path to X11 clipboard','call SpaceVim#util#CopyToClipboard()')
 endfunction
 
 fu! s:tobur(num) abort
diff --git a/autoload/SpaceVim/mapping/space.vim b/autoload/SpaceVim/mapping/space.vim
index 9f69d3e91..921043187 100644
--- a/autoload/SpaceVim/mapping/space.vim
+++ b/autoload/SpaceVim/mapping/space.vim
@@ -129,6 +129,16 @@ function! SpaceVim#mapping#space#init() abort
         \ ]
         \ , 1)
   let s:lnum = expand('<slnum>') + s:funcbeginline
+  call SpaceVim#mapping#space#def('nnoremap', ['w', 'x'], 'wincmd x',
+        \ ['window-switch-placement',
+        \ [
+        \ '[SPC w x] is to jump to exchange current window with next one.',
+        \ '',
+        \ 'Definition: ' . s:file . ':' . s:lnum,
+        \ ]
+        \ ]
+        \ , 1)
+  let s:lnum = expand('<slnum>') + s:funcbeginline
   call SpaceVim#mapping#space#def('nnoremap', ['w', 'k'], 'wincmd k',
         \ ['window-up',
         \ [
diff --git a/config/main.vim b/config/main.vim
index c59cb4919..320a9cd60 100644
--- a/config/main.vim
+++ b/config/main.vim
@@ -67,5 +67,7 @@ call SpaceVim#begin()
 
 call SpaceVim#custom#load()
 
+call SpaceVim#default#keyBindings()
+
 call SpaceVim#end()
 " vim:set et sw=2 cc=80:
diff --git a/docs/cn/documentation.md b/docs/cn/documentation.md
index 146c62e7b..b06c956b9 100644
--- a/docs/cn/documentation.md
+++ b/docs/cn/documentation.md
@@ -152,7 +152,10 @@ Neovim 运行在 iTerm2 上，采用 SpaceVim，配色为：_base16-solarized-da
 
 **临时快捷键菜单**
 
-SpaceVim 根据需要定义了很多临时快捷键，这可以避免需要重复某些操作时过多按下 `SPC` 前缀键。当临时快捷键启用时，会在窗口下方打开一个快捷键介绍窗口，提示每一临时快捷键的功能。此外一些额外的辅助信息也将会显示出来。
+SpaceVim 根据需要定义了很多临时快捷键，
+这可以避免需要重复某些操作时过多按下 `SPC` 前缀键。
+当临时快捷键启用时，会在窗口下方打开一个快捷键介绍窗口，
+提示每一临时快捷键的功能。此外一些额外的辅助信息也将会显示出来。
 
 文本移动临时快捷键：
 
@@ -259,7 +262,6 @@ SpaceVim 根据需要定义了很多临时快捷键，这可以避免需要重
 或者 `~/.cache/vimfiles/.cache/vimrc/`，
 这依据当前使用的是 Neovim 还是 Vim。
 
-
 除了 `on_cmd` 以外，还有一些其它的选项，可以通过
 `:h dein-options` 查阅。
 
@@ -666,7 +668,7 @@ endfunction
 
 标签栏上也支持鼠标操作，左键可以快速切换至该标签，中键删除该标签。该特性只支持 Neovim，并且需要 `has('tablineat')` 特性。
 
-**注意:** 这一特性仅限于Neovim并且 `has('tablineat')` 返回 `true`。
+**注意:** 这一特性仅限于 Neovim 并且 `has('tablineat')` 返回 `true`。
 
 | 快捷键           | 功能描述     |
 | ---------------- | ------------ |
@@ -777,8 +779,6 @@ SpaceVim 的文件树提供了版本控制信息的接口，但是这一特性
 | `Ctrl-b`          | 向上翻页 (`C-b` / `C-u`)       |
 | `Ctrl-e`          | 向下滚屏 (`3 Ctrl-e/j`)        |
 | `Ctrl-y`          | 向上滚屏 (`3Ctrl-y/k`)         |
-| `Ctrl-c`          | 复制当前文件绝对路径           |
-| `Ctrl-x`          | 切换窗口文件                   |
 | `Ctrl-Shift-Up`   | 向上移动当前行                 |
 | `Ctrl-Shift-Down` | 向下移动当前行                 |
 
@@ -824,7 +824,10 @@ SpaceVim 的文件树提供了版本控制信息的接口，但是这一特性
 
 ### 快捷键导航
 
-当 Normal 模式下按下前缀键后出现输入延迟，则会在屏幕下方打开一个快捷键导航窗口，提示当前可用的快捷键及其功能描述，目前支持的前缀键有：`[SPC]`、`[Window]`、`<Leader>`、`g`、`z`。
+当 Normal 模式下按下前缀键后出现输入延迟，
+则会在屏幕下方打开一个快捷键导航窗口，
+提示当前可用的快捷键及其功能描述，
+目前支持的前缀键有：`[SPC]`、`[Window]`、`<Leader>`、`g`、`z`。
 
 这些前缀的按键为：
 
@@ -834,6 +837,21 @@ SpaceVim 的文件树提供了版本控制信息的接口，但是这一特性
 | `[Window]` | `windows_leader` / `s` | SpaceVim 默认窗口前缀键 |
 | `<leader>` | 默认的 Vim leader 键   | Vim/Neovim 默认前缀键   |
 
+
+默认的 `<Leader>` 键是 `\`, 如果需要修改 `<Leader>`
+键则需要使用启动函数修改 `g:mapleader` 的值，
+比如使用逗号 `,` 作为 `<Leader>` 按键。
+
+```vim
+function! myspacevim#before() abort
+    let g:mapleader = ','
+endfunction
+```
+
+**注意：** 在函数中修改 `g:mapleader` 的值，不可以省略前缀 `g:`，
+因为函数中的变量默认作用域是 `l:`，这与 Vim 的帮助 `:h mapleader`
+有些许不一样。
+
 默认情况下，快捷键导航将在输入延迟超过 1000ms 后打开，你可以通过修改 Vim 的 `'timeoutlen'` 选项来修改成适合自己的延迟时间长度。
 
 例如，Normal 模式下按下空格键，你将会看到：
@@ -1100,6 +1118,7 @@ SpaceVim 选项 `window_leader` 的值来设为其它按键：
 | `SPC w V`     | 垂直分离窗口，并切换至新窗口                       |
 | `SPC w w`     | 切换至前一窗口                                     |
 | `SPC w W`     | 选择一个窗口                                       |
+| `SPC w x`     | 切换窗口文件                                       |
 
 ### 缓冲区管理
 
@@ -1689,7 +1708,6 @@ Denite/Unite 是一个强大的信息筛选浏览器，这类似于 Emacs 中的
 
 ### 工程管理
 
-
 当打开一个文件时，SpaceVim 会自动切换当前目录至包含该文件的项目根目录，
 项目根目录的检测依据 `project_rooter_patterns` 这一选项，其默认值为：
 
diff --git a/docs/documentation.md b/docs/documentation.md
index f16a0a255..52d52667d 100644
--- a/docs/documentation.md
+++ b/docs/documentation.md
@@ -267,7 +267,7 @@ to the `custom_plugins` section:
 `on_cmd` option means this plugin will be loaded only when the following commands are called.
 
 `merged` option is used for merging plugins directory. When `merged` is `trye`, all files in
-this custom plugin will be merged into `~/.cache/vimfiles/.cache/init.vim/` for neovim or 
+this custom plugin will be merged into `~/.cache/vimfiles/.cache/init.vim/` for neovim or
 `~/.cache/vimfiles/.cache/vimrc/` for vim.
 
 For more options see `:h dein-options`.
@@ -812,24 +812,23 @@ If only one file buffer is opened, a file is opened in the active window, otherw
 
 The following key bindings are the general key bindings for moving cursor.
 
-| Key Bindings     | Descriptions                                      |
-| ---------------- | ------------------------------------------------- |
-| `h`              | move cursor left                                  |
-| `j`              | move cursor down                                  |
-| `k`              | move cursor up                                    |
-| `l`              | move cursor right                                 |
-| `<Up>`, `<Down>` | Smart up and down                                 |
-| `H`              | move cursor to the top of the screen              |
-| `L`              | move cursor to the bottom of the screen           |
-| `<`              | Indent to left and re-select                      |
-| `>`              | Indent to right and re-select                     |
-| `}`              | paragraphs forward                                |
-| `{`              | paragraphs backward                               |
-| `Ctrl-f`         | Smart page forward (`Ctrl-f` / `Ctrl-d`)          |
-| `Ctrl-b`         | Smart page backward (`C-b` / `C-u`)               |
-| `Ctrl-e`         | Smart scroll down (`3 Ctrl-e/j`)                  |
-| `Ctrl-y`         | Smart scroll up (`3Ctrl-y/k`)                     |
-| `Ctrl-c`         | Copy full path of current buffer to X11 clipboard |
+| Key Bindings     | Descriptions                             |
+| ---------------- | ---------------------------------------- |
+| `h`              | move cursor left                         |
+| `j`              | move cursor down                         |
+| `k`              | move cursor up                           |
+| `l`              | move cursor right                        |
+| `<Up>`, `<Down>` | Smart up and down                        |
+| `H`              | move cursor to the top of the screen     |
+| `L`              | move cursor to the bottom of the screen  |
+| `<`              | Indent to left and re-select             |
+| `>`              | Indent to right and re-select            |
+| `}`              | paragraphs forward                       |
+| `{`              | paragraphs backward                      |
+| `Ctrl-f`         | Smart page forward (`Ctrl-f` / `Ctrl-d`) |
+| `Ctrl-b`         | Smart page backward (`C-b` / `C-u`)      |
+| `Ctrl-e`         | Smart scroll down (`3 Ctrl-e/j`)         |
+| `Ctrl-y`         | Smart scroll up (`3Ctrl-y/k`)            |
 
 ### Native functions
 
@@ -851,7 +850,6 @@ The following key bindings are the general key bindings for moving cursor.
 | `<Tab>`           | Indent to right and re-select            |
 | `Shift-<Tab>`     | Indent to left and re-select             |
 | `Ctrl-q`          | `Ctrl-w`                                 |
-| `Ctrl-x`          | Switch buffer and placement              |
 | `Ctrl-Shift-Up`   | move lines up                            |
 | `Ctrl-Shift-Down` | move lines down                          |
 
@@ -885,6 +883,20 @@ The default keys of these prefixs are:
 | `[WIN]`     | `windows_leader` / `s`            | window mapping prefix of SpaceVim   |
 | `<Leader>`  | default vim leader                | default leader prefix of vim/Neovim |
 
+The default value of `<Leader>` is `\`, if you want to change this key,
+you need to use bootstrap function. For example, use `,` as the `<Leader>` key:
+
+```vim
+function! myspacevim#before() abort
+    let g:mapleader = ','
+endfunction
+```
+
+**NOTE:** When changing valuable `g:mapleader` in a function.
+you can not omit the valuable scope. Because the default scope
+of a valuable in function is `l:`. It seems different from what you
+seee in vim help `:h mapleader`.
+
 By default the guide buffer will be displayed 1000ms after the keys being pressed.
 You can change the delay by adding vim option `'timeoutlen'` to your bootstrap function.
 
@@ -1160,6 +1172,7 @@ Windows manipulation commands (start with `w`):
 | `SPC w V`             | vertical split and focus new window                                                                           |
 | `SPC w w`             | cycle and focus between windows                                                                               |
 | `SPC w W`             | select window using vim-choosewin                                                                             |
+| `SPC w x`             | exchange current window with next one                                                                         |
 
 ### Buffers and Files
 
@@ -1733,7 +1746,7 @@ which will tell you the functional of all mappings starting with `z`.
 
 When open a file, SpaceVim will change current directory to the project
 root directory which contains this file. The project root directory detection
-is based on on `project_rooter_patterns` option,  and the default value is:
+is based on on `project_rooter_patterns` option, and the default value is:
 
 ```toml
 [options]