diff --git a/autoload/SpaceVim/layers/core.vim b/autoload/SpaceVim/layers/core.vim
index 1835d85e8..cba1bb4e9 100644
--- a/autoload/SpaceVim/layers/core.vim
+++ b/autoload/SpaceVim/layers/core.vim
@@ -8,5 +8,5 @@ endfunction
 
 function! SpaceVim#layers#core#config() abort
     let g:rooter_silent_chdir = 1
-
+    call SpaceVim#mapping#space#def('nnoremap', ['p', 't'], 'Rooter', 'find-project-root', 1)
 endfunction
diff --git a/autoload/SpaceVim/layers/format.vim b/autoload/SpaceVim/layers/format.vim
index 5e1aa77e0..8cc466c17 100644
--- a/autoload/SpaceVim/layers/format.vim
+++ b/autoload/SpaceVim/layers/format.vim
@@ -17,3 +17,7 @@ function! SpaceVim#layers#format#plugins() abort
                 \ ['sbdchd/neoformat', {'merged' : 0, 'loadconf' : 1 , 'loadconf_before' : 1}],
                 \ ]
 endfunction
+
+function! SpaceVim#layers#format#config() abort
+  call SpaceVim#mapping#space#def('nnoremap', ['b', 'f'], 'Neoformat', 'format-codo', 1)
+endfunction
diff --git a/autoload/SpaceVim/mapping/space.vim b/autoload/SpaceVim/mapping/space.vim
index c3d4a28be..cc18a238f 100644
--- a/autoload/SpaceVim/mapping/space.vim
+++ b/autoload/SpaceVim/mapping/space.vim
@@ -12,11 +12,14 @@ function! SpaceVim#mapping#space#init() abort
     let g:_spacevim_mappings_space.b = {'name' : '+Buffers'}
     let g:_spacevim_mappings_space.f = {'name' : '+Files'}
     let g:_spacevim_mappings_space.w = {'name' : '+Windows'}
+    let g:_spacevim_mappings_space.p = {'name' : '+Projects'}
     " Windows
     let g:_spacevim_mappings_space.w['<Tab>'] = ['wincmd w', 'alternate-window']
     call SpaceVim#mapping#menu('alternate-window', '[SPC]w<Tab>', 'wincmd w')
-    let g:_spacevim_mappings_space.w['+'] = ['wincmd w', 'windows-layout-toggle']
-    call SpaceVim#mapping#menu('window-layout-toggle', '[SPC]w+', 'wincmd w')
+    call SpaceVim#mapping#space#def('nnoremap', ['w', '+'], 
+                \ 'call call('
+                \ . string(function('s:windows_layout_toggle'))
+                \ . ', [])', 'windows-layout-toggle', 1)
     call SpaceVim#mapping#space#def('nnoremap', ['w', 'h'], 'wincmd h', 'window-left', 1)
     call SpaceVim#mapping#space#def('nnoremap', ['w', 'j'], 'wincmd j', 'window-down', 1)
     call SpaceVim#mapping#space#def('nnoremap', ['w', 'k'], 'wincmd k', 'window-up', 1)
@@ -25,6 +28,10 @@ function! SpaceVim#mapping#space#init() abort
     call SpaceVim#mapping#space#def('nnoremap', ['w', 'J'], 'wincmd J', 'window-far-down', 1)
     call SpaceVim#mapping#space#def('nnoremap', ['w', 'K'], 'wincmd K', 'window-far-up', 1)
     call SpaceVim#mapping#space#def('nnoremap', ['w', 'L'], 'wincmd L', 'window-far-right', 1)
+    call SpaceVim#mapping#space#def('nnoremap', ['w', '/'], 'bel vs | wincmd w', 'split-window-right', 1)
+    call SpaceVim#mapping#space#def('nnoremap', ['w', 'v'], 'bel vs | wincmd w', 'split-window-right', 1)
+    call SpaceVim#mapping#space#def('nnoremap', ['w', 'V'], 'bel vs', 'split-window-right-focus', 1)
+    call SpaceVim#mapping#space#def('nnoremap', ['w', '='], 'wincmd =', 'balance-windows', 1)
     nnoremap <silent> [SPC]bn :bnext<CR>
     let g:_spacevim_mappings_space.b.n = ['bnext', 'next buffer']
     call SpaceVim#mapping#menu('Open next buffer', '[SPC]bn', 'bp')
@@ -57,7 +64,7 @@ function! SpaceVim#mapping#space#def(m, keys, cmd, desc, is_cmd) abort
             let lcmd = 'call feedkeys("' . a:cmd . '", "' . feedkey_m . '")'
         endif
     endif
-    exe a:m . ' <silent> [SPC]' . join(a:keys, '') . ' ' . cmd
+    exe a:m . ' <silent> [SPC]' . join(a:keys, '') . ' ' . substitute(cmd, '|', '\\|', 'g')
     if len(a:keys) == 2
         let g:_spacevim_mappings_space[a:keys[0]][a:keys[1]] = [lcmd, a:desc]
     elseif len(a:keys) == 1
@@ -69,3 +76,26 @@ endfunction
 function! s:has_map_to_spc() abort
         return get(g:, 'mapleader', '\') == ' '
 endfunction
+
+function! s:windows_layout_toggle() abort
+    if winnr('$') != 2
+        echohl WarningMsg
+        echom "Can't toggle window layout when the number of windows isn't two."
+        echohl None
+    else 
+        if winnr() == 1
+           let b = winbufnr(2)
+       else
+           let b = winbufnr(1)
+       endif
+       if winwidth(1) == &columns
+           only
+           vsplit
+       else
+           only
+           split
+       endif
+       exe 'b'.b
+       wincmd w
+    endif
+endfunction
diff --git a/docs/documentation.md b/docs/documentation.md
index 9605dfe5a..68a7d503b 100644
--- a/docs/documentation.md
+++ b/docs/documentation.md
@@ -8,9 +8,10 @@ title:  "Documentation"
 
 - Features
     - [Modular configuration](#modular-configuration)
+    - [Awesome ui](#awesome-ui)
+    - [Mnemonic key bindings](#mnemonic-key-bindings)
     - [Neovim centric - Dark powered mode](#neovim-centric---dark-powered-mode-of-spacevim)
     - [Language specific mode](#language-specific-mode)
-    - [Awesome ui](#awesome-ui)
     - [Unite centric work-flow](#unite-centric-work-flow)
     - [multiple leader mode](#multiple-leader-mode)
 - [Custom configuration](#custom-configuration)
@@ -24,6 +25,10 @@ title:  "Documentation"
 - outline + filemanager + checker
     ![2017-02-01_1360x721](https://cloud.githubusercontent.com/assets/13142418/22506638/84705532-e8bc-11e6-8b72-edbdaf08426b.png)
 
+## Mnemonic key bindings
+
+Key bindings are organized using mnemonic prefixes like b for buffer, p for project, s for search, h for help, etc…
+
 ## Language specific mode
 
 ## Key Mapping