diff --git a/.aspell.en.pws b/.aspell.en.pws
index d9e3c2f97..7f7d41ed8 100644
--- a/.aspell.en.pws
+++ b/.aspell.en.pws
@@ -1,4 +1,4 @@
-personal_ws-1.1 en 147 
+personal_ws-1.1 en 149 
 grimoire
 IcedGrep
 IcedDocumentOpen
@@ -42,6 +42,7 @@ sexp
 dir
 href
 IcedEvalOuterTopList
+IcedCommandPalette
 lhs
 changelog
 wrapscan
@@ -82,6 +83,7 @@ IcedBrowseFunction
 stdout
 Javadoc
 IcedExtractFunction
+IcedGrimoireOpen
 IcedToggleTraceNs
 FileType
 IcedMoveToLet
diff --git a/autoload/iced/let.vim b/autoload/iced/let.vim
index 4c2c1afaf..e72fb96f9 100644
--- a/autoload/iced/let.vim
+++ b/autoload/iced/let.vim
@@ -6,20 +6,31 @@ function! iced#let#goto() abort
   let reg_save = @@
 
   try
-    call iced#paredit#move_to_prev_top_element()
-    let stopline = line('.')
-    call winrestview(view)
-    let ret = search('(let[ \r\n]', 'b', stopline)
-    if ret != 0
-      call search('\[')
+    if iced#paredit#move_to_current_element_head() == 0
+      call winrestview(view)
+      return 0
     endif
-    return ret
+
+    while v:true
+      let head = strpart(getline('.'), col('.'), 4)
+      if head ==# 'let' || head ==# 'let '
+        call search('\[')
+        break
+      endif
+
+      if iced#paredit#move_to_parent_element() == 0
+        call winrestview(view)
+        return 0
+      endif
+    endwhile
+
+    return col('.')
   finally
     let @@ = reg_save
   endtry
 endfunction
 
-function! iced#let#move_to_let() abort
+function! iced#let#move_to_let(...) abort
   let view = winsaveview()
   let reg_save = @@
 
@@ -29,15 +40,30 @@ function! iced#let#move_to_let() abort
 
     let indent = col('.')-1
     let form = iced#util#del_indent(indent, form)
-    let name = trim(input('Name: '))
+    let name = get(a:, 1, '')
+    if empty(name)
+      let name = trim(input('Name: '))
+    endif
+    if empty(name)
+      return iced#message#echom('canceled')
+    endif
 
     if iced#let#goto() == 0
+      " re-select form
+      call iced#paredit#get_outer_list_raw()
       " 6 means `len('(let [')`
       let form = iced#util#add_indent(len(name)+1+6, form)
       let @@ = iced#util#add_indent(
             \ indent, printf("(let [%s %s]\n  %s)", name, form, name))
       silent normal! gvp
     else
+      " re-select form
+      " FIXME too redundant!!
+      let tmp = winsaveview()
+      call winrestview(view)
+      call iced#paredit#get_outer_list_raw()
+      call winrestview(tmp)
+
       let pos = getcurpos()
       let @@ = name
       silent normal! gvp
diff --git a/autoload/iced/nrepl/debug.vim b/autoload/iced/nrepl/debug.vim
index 6bc1e5fee..f164f93c0 100644
--- a/autoload/iced/nrepl/debug.vim
+++ b/autoload/iced/nrepl/debug.vim
@@ -25,7 +25,7 @@ function! s:apply_coordination(coordination) abort
     let i = c
     while i > 0
       call sexp#move_to_adjacent_element('n', 1, 1, 0, 0)
-      let x = strpart(getline('.'), max([col('.')-1, 1]), 6)
+      let x = strpart(getline('.'), max([col('.')-1, 0]), 6)
       if stridx(x, '#dbg') != 0 && stridx(x, '#break') != 0
         let i = i - 1
       endif
@@ -57,8 +57,7 @@ function! s:move_cursor_and_set_highlight(resp) abort
   call s:apply_coordination(a:resp['coor'])
 
   let pos = getcurpos()
-  let char = getline('.')[max([col('.')-1, 1])]
-  if char ==# '('
+  if iced#util#char() ==# '('
     normal! l
     let l = max([len(expand('<cword>')), 1])
   else
diff --git a/autoload/iced/nrepl/ns/refactor.vim b/autoload/iced/nrepl/ns/refactor.vim
index f99a644de..ee8115919 100644
--- a/autoload/iced/nrepl/ns/refactor.vim
+++ b/autoload/iced/nrepl/ns/refactor.vim
@@ -160,10 +160,11 @@ function! s:add(ns_name) abort
   call iced#message#info_str(msg)
 endfunction
 
-function! s:project_namespaces(namespaces) abort
-  let namespaces = (empty(a:namespaces) ? [] : a:namespaces)
+function! s:ns_list(resp) abort
+  if !has_key(a:resp, 'ns-list') | return iced#message#error('ns_list_error') | endif
+  let namespaces = get(a:resp, 'ns-list', [])
   let favorites = get(g:iced#nrepl#ns#refactor#favorites, iced#nrepl#current_session_key(), {})
-  call extend(namespaces, keys(favorites))
+  let namespaces = s:L.uniq(s:L.concat([namespaces, keys(favorites)]))
 
   call ctrlp#iced#start({
         \ 'candidates': namespaces,
@@ -173,7 +174,7 @@ endfunction
 
 function! iced#nrepl#ns#refactor#add(ns_name) abort
   if empty(a:ns_name)
-    call iced#nrepl#op#iced#project_namespaces(funcref('s:project_namespaces'))
+    call iced#nrepl#op#cider#ns_list(funcref('s:ns_list'))
   else
     call s:add(a:ns_name)
   endif
diff --git a/autoload/iced/nrepl/op/cider.vim b/autoload/iced/nrepl/op/cider.vim
index 91ea5faa2..ab96a8453 100644
--- a/autoload/iced/nrepl/op/cider.vim
+++ b/autoload/iced/nrepl/op/cider.vim
@@ -22,6 +22,15 @@ function! iced#nrepl#op#cider#ns_path(ns, callback) abort
       \ })
 endfunction
 
+function! iced#nrepl#op#cider#ns_list(callback) abort
+  if !iced#nrepl#is_connected() | echom iced#message#get('not_connected') | return | endif
+  call iced#nrepl#send({
+      \ 'op': 'ns-list',
+      \ 'session': iced#nrepl#current_session(),
+      \ 'callback': a:callback,
+      \ })
+endfunction
+
 function! iced#nrepl#op#cider#format_code(code, callback) abort
   if !iced#nrepl#is_connected() | echom iced#message#get('not_connected') | return | endif
   call iced#nrepl#send({
diff --git a/autoload/iced/nrepl/refactor.vim b/autoload/iced/nrepl/refactor.vim
index 2c16aa39b..524500e0d 100644
--- a/autoload/iced/nrepl/refactor.vim
+++ b/autoload/iced/nrepl/refactor.vim
@@ -13,6 +13,10 @@ function! iced#nrepl#refactor#extract_function() abort
     try
       let locals = a:resp['used-locals']
       let func_name = trim(input('Function name: '))
+      if empty(func_name)
+        return iced#message#echom('canceled')
+      endif
+
       let func_body = iced#paredit#get_outer_list_raw()
 
       let @@ = printf('(%s %s)', func_name, join(locals, ' '))
diff --git a/autoload/iced/palette.vim b/autoload/iced/palette.vim
new file mode 100644
index 000000000..d2c0ec0de
--- /dev/null
+++ b/autoload/iced/palette.vim
@@ -0,0 +1,44 @@
+let s:save_cpo = &cpo
+set cpo&vim
+
+let s:default_palette = [
+      \ 'Connect',
+      \ 'Disconnect',
+      \ 'Reconnect',
+      \ 'Interrupt',
+      \ 'PrintLast',
+      \ 'RequireAll',
+      \ 'StartCljsRepl figwheel',
+      \ 'StartCljsRepl nashorn',
+      \ 'QuitCljsRepl',
+      \ 'TestNs',
+      \ 'TestAll',
+      \ 'TestRedo',
+      \ 'ToggleSrcAndTest',
+      \ 'BrowseNamespace',
+      \ 'BrowseFunction',
+      \ 'BrowseSpec',
+      \ 'CleanNs',
+      \ 'AddNs',
+      \ 'ToggleTraceVar',
+      \ 'ToggleTraceNs',
+      \ 'InReplNs',
+      \ 'LintCurrentFile',
+      \ 'LintToggle',
+      \ ]
+
+let g:iced#palette#palette = get(g:, 'iced#palette#palette', s:default_palette)
+
+function! s:run(candidate) abort
+  execute printf(':Iced%s', a:candidate)
+endfunction
+
+function! iced#palette#show() abort
+  call ctrlp#iced#start({
+        \ 'candidates': g:iced#palette#palette,
+        \ 'accept': {_, candidate -> s:run(candidate)},
+        \ })
+endfunction
+
+let &cpo = s:save_cpo
+unlet s:save_cpo
diff --git a/autoload/iced/paredit.vim b/autoload/iced/paredit.vim
index b141d7b9c..d7ad2d1c1 100644
--- a/autoload/iced/paredit.vim
+++ b/autoload/iced/paredit.vim
@@ -35,6 +35,31 @@ function! iced#paredit#move_to_prev_top_element() abort
   call sexp#move_to_adjacent_element('n', 0, 0, 0, 1)
 endfunction
 
+function! iced#paredit#move_to_current_element_head() abort
+  if iced#util#char() ==# '('
+    return col('.')
+  else
+    let pos = getcurpos()
+    silent normal! va(o
+    silent exe "normal! \<Esc>"
+    return (pos == getcurpos() ? 0 : col('.'))
+  endif
+endfunction
+
+function! iced#paredit#move_to_parent_element() abort
+  let view = winsaveview()
+  let ret = iced#paredit#move_to_current_element_head()
+  if ret == 0 || col('.') == 1
+    call winrestview(view)
+    return 0
+  endif
+
+  " move to parent form head
+  silent normal! hva(o
+  silent exe "normal! \<Esc>"
+  return col('.')
+endfunction
+
 function! iced#paredit#get_current_top_list_raw() abort
   let code = v:none
   let pos = v:none
@@ -81,7 +106,11 @@ function! iced#paredit#get_current_top_list() abort
 endfunction
 
 function! iced#paredit#get_outer_list_raw() abort
-  silent normal! va(y
+  try
+    silent normal! va(y
+  finally
+    silent exe "normal! \<Esc>"
+  endtry
   return @@
 endfunction
 
diff --git a/autoload/iced/util.vim b/autoload/iced/util.vim
index ce4ddfa68..bdbac6318 100644
--- a/autoload/iced/util.vim
+++ b/autoload/iced/util.vim
@@ -86,5 +86,9 @@ function! iced#util#del_indent(n, s) abort
   return substitute(a:s, '\r\?\n'.spc, "\n", 'g')
 endfunction
 
+function! iced#util#char() abort
+  return getline('.')[max([col('.')-1, 0])]
+endfunction
+
 let &cpo = s:save_cpo
 unlet s:save_cpo
diff --git a/doc/vim-iced.txt b/doc/vim-iced.txt
index 6418696b6..77fd3ebac 100644
--- a/doc/vim-iced.txt
+++ b/doc/vim-iced.txt
@@ -1,6 +1,6 @@
 *vim-iced.txt*            Clojure interactive development environment for Vim8
 
-Version: 0.4.2
+Version: 0.4.3
 Author : Masashi Iizuka <liquidz.uo+vim@gmail.com>
 License: MIT LICENSE
 
@@ -448,6 +448,18 @@ Commands                                                    *vim-iced-commands*
   If {symbol} is not passed, symbol under cursor is used.
   Key is mapped to |<Plug>(iced_source_show)|.
 
+                                                            *:IcedGrimoireOpen*
+:IcedGrimoireOpen [{symbol}]
+  Open a window, and show grimoire for {symbol}
+  If {symbol} is not passed, symbol under cursor is used.
+  Key is mapped to |<Plug>(iced_grimoire_open)|.
+
+                                                          *:IcedCommandPalette*
+:IcedCommandPalette
+  Select command from palette.
+  `ctrlp.vim` is required to select namespace.
+  Key is mapped to |<Plug>(iced_command_palette)|.
+
                                                                    *:IcedSlurp*
 :IcedSlurp
   Slurp next element.
@@ -762,6 +774,14 @@ Key Mappings                                            *vim-iced-key-mappings*
 <Plug>(iced_source_show)
   Same as |:IcedSourceShow|.
 
+                                                   *<Plug>(iced_grimoire_open)*
+<Plug>(iced_grimoire_open)
+  Same as |:IcedGrimoireOpen|.
+
+                                                 *<Plug>(iced_command_palette)*
+<Plug>(iced_command_palette)
+  Same as |:IcedCommandPalette|.
+
                                                            *<Plug>(iced_slurp)*
 <Plug>(iced_slurp)
   Same as |:IcedSlurp|.
@@ -1001,6 +1021,7 @@ g:iced_enable_default_key_mappings
   <Leader>rml    <Plug>(iced_move_to_let)
   <Leader>hs     <Plug>(iced_source_show)
   <Leader>hg     <Plug>(iced_grimoire_open)
+  <Leader>hh     <Plug>(iced_command_palette)
   <Leader>bn     <Plug>(iced_browse_namespace)
   <Leader>bf     <Plug>(iced_browse_function)
   <Leader>bs     <Plug>(iced_browse_spec)
diff --git a/ftplugin/clojure.vim b/ftplugin/clojure.vim
index 5b4f3a882..09908eaee 100644
--- a/ftplugin/clojure.vim
+++ b/ftplugin/clojure.vim
@@ -47,6 +47,7 @@ command!          IcedFormDocument      call iced#nrepl#document#current_form()
 command!          IcedDocumentClose     call iced#buffer#document#close()
 command! -nargs=? IcedSourceShow        call iced#nrepl#source#show(<q-args>)
 command! -nargs=? IcedGrimoireOpen      call iced#grimoire#open(<q-args>)
+command!          IcedCommandPalette    call iced#palette#show()
 
 command!          IcedSlurp             call iced#paredit#deep_slurp()
 command!          IcedBarf              call iced#paredit#barf()
@@ -121,6 +122,7 @@ nnoremap <silent> <Plug>(iced_form_document)       :<C-u>IcedFormDocument<CR>
 nnoremap <silent> <Plug>(iced_document_close)      :<C-u>IcedDocumentClose<CR>
 nnoremap <silent> <Plug>(iced_source_show)         :<C-u>IcedSourceShow<CR>
 nnoremap <silent> <Plug>(iced_grimoire_open)       :<C-u>IcedGrimoireOpen<CR>
+nnoremap <silent> <Plug>(iced_command_palette)     :<C-u>IcedCommandPalette<CR>
 
 nnoremap <silent> <Plug>(iced_slurp)               :<C-u>IcedSlurp<CR>
 nnoremap <silent> <Plug>(iced_barf)                :<C-u>IcedBarf<CR>
@@ -314,6 +316,10 @@ function! s:default_key_mappings() abort
     silent! nmap <buffer> <Leader>hg <Plug>(iced_grimoire_open)
   endif
 
+  if !hasmapto('<Plug>(iced_command_palette)')
+    silent! nmap <buffer> <Leader>hh <Plug>(iced_command_palette)
+  endif
+
   if !hasmapto('<Plug>(iced_browse_namespace)')
     silent! nmap <buffer> <Leader>bn <Plug>(iced_browse_namespace)
   endif
diff --git a/message/iced/en.txt b/message/iced/en.txt
index 8a52eb034..f21ff8df4 100644
--- a/message/iced/en.txt
+++ b/message/iced/en.txt
@@ -30,6 +30,7 @@
   'start_to_trace':     'Start to trace: %s.',
   'stop_to_trace':      'Stop to trace: %s.',
   'untraced':           'Untraced.',
+  'ns_list_error':      'Failed to fetch ns list.',
   'spec_list_error':    'Failed to fetch spec list.',
   'spec_form_error':    'Failed to fetch spec form.',
   'no_spec':            'No spec form is found.',
@@ -42,5 +43,6 @@
   'search_hit_top':     'search hit TOP, continuing at BOTTOM...',
   'search_hit_bottom':  'search hit BOTTOM, continuing at TOP...',
   'used_locals_error':  'Failed to fetch used-locals.',
+  'canceled':           'Canceled.',
 }
 #vim:ft=ruby
diff --git a/test/let.vim b/test/let.vim
new file mode 100644
index 000000000..6b973bcef
--- /dev/null
+++ b/test/let.vim
@@ -0,0 +1,84 @@
+let s:suite  = themis#suite('iced.let')
+let s:assert = themis#helper('assert')
+let s:buf = themis#helper('iced_buffer')
+
+function! s:suite.goto_test() abort
+  call s:buf.start_dummy([
+        \ '(let [foo 123]',
+        \ '  (println foo)',
+        \ '  |)',
+        \ ])
+
+  call s:assert.equals(line('.'), 3)
+  call iced#let#goto()
+  call s:assert.equals(line('.'), 1)
+  call s:assert.equals(col('.'), 6)
+
+  call s:buf.stop_dummy()
+
+  call s:buf.start_dummy([
+        \ '(let [foo 123]',
+        \ '  (println foo)',
+        \ '  (bar|))',
+        \ ])
+
+  call iced#let#goto()
+  call s:assert.equals(line('.'), 1)
+  call s:assert.equals(col('.'), 6)
+
+  call s:buf.stop_dummy()
+endfunction
+
+function! s:suite.goto_no_let_test() abort
+  call s:buf.start_dummy([
+        \ '(list 123',
+        \ '      456|)',
+        \ ])
+
+  let pos = getcurpos()
+  call iced#let#goto()
+  call s:assert.equals(getcurpos(), pos)
+
+  call s:buf.stop_dummy()
+endfunction
+
+function! s:suite.goto_no_matched_let_test() abort
+  call s:buf.start_dummy([
+        \ '(do',
+        \ '  (let [foo 123]',
+        \ '    (println foo))',
+        \ '  |foo)',
+        \ ])
+
+  let pos = getcurpos()
+  call iced#let#goto()
+  call s:assert.equals(getcurpos(), pos)
+
+  call s:buf.stop_dummy()
+endfunction
+
+function! s:suite.move_to_let_test() abort
+  call s:buf.start_dummy(['(let [a 1] (inc |a))'])
+  call iced#let#move_to_let('b')
+  call s:assert.equals(s:buf.get_texts(),
+        \ "(let [a 1\n      b (inc a)] b)")
+  call s:buf.stop_dummy()
+
+  "" no let
+  call s:buf.start_dummy(['(do (inc |a))'])
+  call iced#let#move_to_let('b')
+  call s:assert.equals(s:buf.get_texts(),
+        \ "(do (let [b (inc a)]\n      b))")
+  call s:buf.stop_dummy()
+
+  "" no let in parent
+  call s:buf.start_dummy([
+        \ '(do (let [a 1] a)',
+        \ '    (inc |a))',
+        \ ])
+  call iced#let#move_to_let('b')
+  call s:assert.equals(s:buf.get_texts(),
+        \ "(do (let [a 1] a)\n    (let [b (inc a)]\n      b))")
+  call s:buf.stop_dummy()
+endfunction
+
diff --git a/test/paredit.vim b/test/paredit.vim
index 8ad5bcc7c..1bad8632b 100644
--- a/test/paredit.vim
+++ b/test/paredit.vim
@@ -60,3 +60,52 @@ function! s:suite.get_current_top_list_with_tag_test() abort
   call s:assert.equals(res['code'], "#?(:clj\n   (foo (bar)))")
   call s:buf.stop_dummy()
 endfunction
+
+function! s:suite.move_to_current_element_head_test() abort
+  call s:buf.start_dummy(['(foo (bar (baz|)))'])
+  call s:assert.equals(col('.'), 15)
+  call s:assert.not_equals(iced#paredit#move_to_current_element_head(), 0)
+  call s:assert.equals(col('.'), 11)
+  call s:buf.stop_dummy()
+
+  call s:buf.start_dummy(['(foo (bar |(baz)))'])
+  call s:assert.equals(col('.'), 11)
+  call s:assert.not_equals(iced#paredit#move_to_current_element_head(), 0)
+  call s:assert.equals(col('.'), 11)
+  call s:buf.stop_dummy()
+endfunction
+
+function! s:suite.move_to_current_element_head_not_form_test() abort
+  call s:buf.start_dummy(['(foo (bar (baz)))', '|'])
+  let pos = getcurpos()
+  call s:assert.equals(iced#paredit#move_to_current_element_head(), 0)
+  call s:assert.equals(getcurpos(), pos)
+  call s:buf.stop_dummy()
+endfunction
+
+function! s:suite.move_to_parent_element_test() abort
+  call s:buf.start_dummy([
+        \ '(foo (bar (baz|))',
+        \ ])
+  call s:assert.equals(col('.'), 15)
+  call iced#paredit#move_to_parent_element()
+  call s:assert.equals(col('.'), 6)
+  call s:buf.stop_dummy()
+
+  call s:buf.start_dummy([
+        \ '(do (foo bar) (baz|))',
+        \ ])
+  call iced#paredit#move_to_parent_element()
+  call s:assert.equals(col('.'), 1)
+  call s:buf.stop_dummy()
+endfunction
+
+function! s:suite.move_to_parent_element_no_parent_test() abort
+  call s:buf.start_dummy([
+        \ '(foo| (bar (baz))',
+        \ ])
+  let pos = getcurpos()
+  call iced#paredit#move_to_parent_element()
+  call s:assert.equals(getcurpos(), pos)
+  call s:buf.stop_dummy()
+endfunction