diff --git a/autoload/nerdtree.vim b/autoload/nerdtree.vim
index bb422db..48bdb80 100644
--- a/autoload/nerdtree.vim
+++ b/autoload/nerdtree.vim
@@ -98,113 +98,6 @@ endfunction
 " SECTION: View Functions {{{1
 "============================================================
 
-"FUNCTION: nerdtree#dumpHelp  {{{2
-"prints out the quick help
-function! nerdtree#dumpHelp()
-    let old_h = @h
-    if b:treeShowHelp ==# 1
-        let @h=   "\" NERD tree (" . nerdtree#version() . ") quickhelp~\n"
-        let @h=@h."\" ============================\n"
-        let @h=@h."\" File node mappings~\n"
-        let @h=@h."\" ". (g:NERDTreeMouseMode ==# 3 ? "single" : "double") ."-click,\n"
-        let @h=@h."\" <CR>,\n"
-        if b:NERDTreeType ==# "primary"
-            let @h=@h."\" ". g:NERDTreeMapActivateNode .": open in prev window\n"
-        else
-            let @h=@h."\" ". g:NERDTreeMapActivateNode .": open in current window\n"
-        endif
-        if b:NERDTreeType ==# "primary"
-            let @h=@h."\" ". g:NERDTreeMapPreview .": preview\n"
-        endif
-        let @h=@h."\" ". g:NERDTreeMapOpenInTab.": open in new tab\n"
-        let @h=@h."\" ". g:NERDTreeMapOpenInTabSilent .": open in new tab silently\n"
-        let @h=@h."\" middle-click,\n"
-        let @h=@h."\" ". g:NERDTreeMapOpenSplit .": open split\n"
-        let @h=@h."\" ". g:NERDTreeMapPreviewSplit .": preview split\n"
-        let @h=@h."\" ". g:NERDTreeMapOpenVSplit .": open vsplit\n"
-        let @h=@h."\" ". g:NERDTreeMapPreviewVSplit .": preview vsplit\n"
-
-        let @h=@h."\"\n\" ----------------------------\n"
-        let @h=@h."\" Directory node mappings~\n"
-        let @h=@h."\" ". (g:NERDTreeMouseMode ==# 1 ? "double" : "single") ."-click,\n"
-        let @h=@h."\" ". g:NERDTreeMapActivateNode .": open & close node\n"
-        let @h=@h."\" ". g:NERDTreeMapOpenRecursively .": recursively open node\n"
-        let @h=@h."\" ". g:NERDTreeMapCloseDir .": close parent of node\n"
-        let @h=@h."\" ". g:NERDTreeMapCloseChildren .": close all child nodes of\n"
-        let @h=@h."\"    current node recursively\n"
-        let @h=@h."\" middle-click,\n"
-        let @h=@h."\" ". g:NERDTreeMapOpenExpl.": explore selected dir\n"
-
-        let @h=@h."\"\n\" ----------------------------\n"
-        let @h=@h."\" Bookmark table mappings~\n"
-        let @h=@h."\" double-click,\n"
-        let @h=@h."\" ". g:NERDTreeMapActivateNode .": open bookmark\n"
-        let @h=@h."\" ". g:NERDTreeMapOpenInTab.": open in new tab\n"
-        let @h=@h."\" ". g:NERDTreeMapOpenInTabSilent .": open in new tab silently\n"
-        let @h=@h."\" ". g:NERDTreeMapDeleteBookmark .": delete bookmark\n"
-
-        let @h=@h."\"\n\" ----------------------------\n"
-        let @h=@h."\" Tree navigation mappings~\n"
-        let @h=@h."\" ". g:NERDTreeMapJumpRoot .": go to root\n"
-        let @h=@h."\" ". g:NERDTreeMapJumpParent .": go to parent\n"
-        let @h=@h."\" ". g:NERDTreeMapJumpFirstChild  .": go to first child\n"
-        let @h=@h."\" ". g:NERDTreeMapJumpLastChild   .": go to last child\n"
-        let @h=@h."\" ". g:NERDTreeMapJumpNextSibling .": go to next sibling\n"
-        let @h=@h."\" ". g:NERDTreeMapJumpPrevSibling .": go to prev sibling\n"
-
-        let @h=@h."\"\n\" ----------------------------\n"
-        let @h=@h."\" Filesystem mappings~\n"
-        let @h=@h."\" ". g:NERDTreeMapChangeRoot .": change tree root to the\n"
-        let @h=@h."\"    selected dir\n"
-        let @h=@h."\" ". g:NERDTreeMapUpdir .": move tree root up a dir\n"
-        let @h=@h."\" ". g:NERDTreeMapUpdirKeepOpen .": move tree root up a dir\n"
-        let @h=@h."\"    but leave old root open\n"
-        let @h=@h."\" ". g:NERDTreeMapRefresh .": refresh cursor dir\n"
-        let @h=@h."\" ". g:NERDTreeMapRefreshRoot .": refresh current root\n"
-        let @h=@h."\" ". g:NERDTreeMapMenu .": Show menu\n"
-        let @h=@h."\" ". g:NERDTreeMapChdir .":change the CWD to the\n"
-        let @h=@h."\"    selected dir\n"
-        let @h=@h."\" ". g:NERDTreeMapCWD .":change tree root to CWD\n"
-
-        let @h=@h."\"\n\" ----------------------------\n"
-        let @h=@h."\" Tree filtering mappings~\n"
-        let @h=@h."\" ". g:NERDTreeMapToggleHidden .": hidden files (" . (b:NERDTreeShowHidden ? "on" : "off") . ")\n"
-        let @h=@h."\" ". g:NERDTreeMapToggleFilters .": file filters (" . (b:NERDTreeIgnoreEnabled ? "on" : "off") . ")\n"
-        let @h=@h."\" ". g:NERDTreeMapToggleFiles .": files (" . (b:NERDTreeShowFiles ? "on" : "off") . ")\n"
-        let @h=@h."\" ". g:NERDTreeMapToggleBookmarks .": bookmarks (" . (b:NERDTreeShowBookmarks ? "on" : "off") . ")\n"
-
-        "add quickhelp entries for each custom key map
-        let @h=@h."\"\n\" ----------------------------\n"
-        let @h=@h."\" Custom mappings~\n"
-        for i in g:NERDTreeKeyMap.All()
-            if !empty(i.quickhelpText)
-                let @h=@h."\" ". i.key .": ". i.quickhelpText ."\n"
-            endif
-        endfor
-
-        let @h=@h."\"\n\" ----------------------------\n"
-        let @h=@h."\" Other mappings~\n"
-        let @h=@h."\" ". g:NERDTreeMapQuit .": Close the NERDTree window\n"
-        let @h=@h."\" ". g:NERDTreeMapToggleZoom .": Zoom (maximize-minimize)\n"
-        let @h=@h."\"    the NERDTree window\n"
-        let @h=@h."\" ". g:NERDTreeMapHelp .": toggle help\n"
-        let @h=@h."\"\n\" ----------------------------\n"
-        let @h=@h."\" Bookmark commands~\n"
-        let @h=@h."\" :Bookmark [<name>]\n"
-        let @h=@h."\" :BookmarkToRoot <name>\n"
-        let @h=@h."\" :RevealBookmark <name>\n"
-        let @h=@h."\" :OpenBookmark <name>\n"
-        let @h=@h."\" :ClearBookmarks [<names>]\n"
-        let @h=@h."\" :ClearAllBookmarks\n"
-        silent! put h
-    elseif g:NERDTreeMinimalUI == 0
-        let @h="\" Press ". g:NERDTreeMapHelp ." for help\n"
-        silent! put h
-    endif
-
-    let @h = old_h
-endfunction
-
 "FUNCTION: nerdtree#echo  {{{2
 "A wrapper for :echo. Appends 'NERDTree:' on the front of all messages
 "
diff --git a/lib/nerdtree/ui.vim b/lib/nerdtree/ui.vim
index 209f826..b33fc8b 100644
--- a/lib/nerdtree/ui.vim
+++ b/lib/nerdtree/ui.vim
@@ -22,6 +22,114 @@ function! s:UI.centerView()
     endif
 endfunction
 
+"FUNCTION: s:UI._dumpHelp  {{{1
+"prints out the quick help
+function! s:UI._dumpHelp()
+    let old_h = @h
+    if b:treeShowHelp ==# 1
+        let @h=   "\" NERD tree (" . nerdtree#version() . ") quickhelp~\n"
+        let @h=@h."\" ============================\n"
+        let @h=@h."\" File node mappings~\n"
+        let @h=@h."\" ". (g:NERDTreeMouseMode ==# 3 ? "single" : "double") ."-click,\n"
+        let @h=@h."\" <CR>,\n"
+        if b:NERDTreeType ==# "primary"
+            let @h=@h."\" ". g:NERDTreeMapActivateNode .": open in prev window\n"
+        else
+            let @h=@h."\" ". g:NERDTreeMapActivateNode .": open in current window\n"
+        endif
+        if b:NERDTreeType ==# "primary"
+            let @h=@h."\" ". g:NERDTreeMapPreview .": preview\n"
+        endif
+        let @h=@h."\" ". g:NERDTreeMapOpenInTab.": open in new tab\n"
+        let @h=@h."\" ". g:NERDTreeMapOpenInTabSilent .": open in new tab silently\n"
+        let @h=@h."\" middle-click,\n"
+        let @h=@h."\" ". g:NERDTreeMapOpenSplit .": open split\n"
+        let @h=@h."\" ". g:NERDTreeMapPreviewSplit .": preview split\n"
+        let @h=@h."\" ". g:NERDTreeMapOpenVSplit .": open vsplit\n"
+        let @h=@h."\" ". g:NERDTreeMapPreviewVSplit .": preview vsplit\n"
+
+        let @h=@h."\"\n\" ----------------------------\n"
+        let @h=@h."\" Directory node mappings~\n"
+        let @h=@h."\" ". (g:NERDTreeMouseMode ==# 1 ? "double" : "single") ."-click,\n"
+        let @h=@h."\" ". g:NERDTreeMapActivateNode .": open & close node\n"
+        let @h=@h."\" ". g:NERDTreeMapOpenRecursively .": recursively open node\n"
+        let @h=@h."\" ". g:NERDTreeMapCloseDir .": close parent of node\n"
+        let @h=@h."\" ". g:NERDTreeMapCloseChildren .": close all child nodes of\n"
+        let @h=@h."\"    current node recursively\n"
+        let @h=@h."\" middle-click,\n"
+        let @h=@h."\" ". g:NERDTreeMapOpenExpl.": explore selected dir\n"
+
+        let @h=@h."\"\n\" ----------------------------\n"
+        let @h=@h."\" Bookmark table mappings~\n"
+        let @h=@h."\" double-click,\n"
+        let @h=@h."\" ". g:NERDTreeMapActivateNode .": open bookmark\n"
+        let @h=@h."\" ". g:NERDTreeMapOpenInTab.": open in new tab\n"
+        let @h=@h."\" ". g:NERDTreeMapOpenInTabSilent .": open in new tab silently\n"
+        let @h=@h."\" ". g:NERDTreeMapDeleteBookmark .": delete bookmark\n"
+
+        let @h=@h."\"\n\" ----------------------------\n"
+        let @h=@h."\" Tree navigation mappings~\n"
+        let @h=@h."\" ". g:NERDTreeMapJumpRoot .": go to root\n"
+        let @h=@h."\" ". g:NERDTreeMapJumpParent .": go to parent\n"
+        let @h=@h."\" ". g:NERDTreeMapJumpFirstChild  .": go to first child\n"
+        let @h=@h."\" ". g:NERDTreeMapJumpLastChild   .": go to last child\n"
+        let @h=@h."\" ". g:NERDTreeMapJumpNextSibling .": go to next sibling\n"
+        let @h=@h."\" ". g:NERDTreeMapJumpPrevSibling .": go to prev sibling\n"
+
+        let @h=@h."\"\n\" ----------------------------\n"
+        let @h=@h."\" Filesystem mappings~\n"
+        let @h=@h."\" ". g:NERDTreeMapChangeRoot .": change tree root to the\n"
+        let @h=@h."\"    selected dir\n"
+        let @h=@h."\" ". g:NERDTreeMapUpdir .": move tree root up a dir\n"
+        let @h=@h."\" ". g:NERDTreeMapUpdirKeepOpen .": move tree root up a dir\n"
+        let @h=@h."\"    but leave old root open\n"
+        let @h=@h."\" ". g:NERDTreeMapRefresh .": refresh cursor dir\n"
+        let @h=@h."\" ". g:NERDTreeMapRefreshRoot .": refresh current root\n"
+        let @h=@h."\" ". g:NERDTreeMapMenu .": Show menu\n"
+        let @h=@h."\" ". g:NERDTreeMapChdir .":change the CWD to the\n"
+        let @h=@h."\"    selected dir\n"
+        let @h=@h."\" ". g:NERDTreeMapCWD .":change tree root to CWD\n"
+
+        let @h=@h."\"\n\" ----------------------------\n"
+        let @h=@h."\" Tree filtering mappings~\n"
+        let @h=@h."\" ". g:NERDTreeMapToggleHidden .": hidden files (" . (b:NERDTreeShowHidden ? "on" : "off") . ")\n"
+        let @h=@h."\" ". g:NERDTreeMapToggleFilters .": file filters (" . (b:NERDTreeIgnoreEnabled ? "on" : "off") . ")\n"
+        let @h=@h."\" ". g:NERDTreeMapToggleFiles .": files (" . (b:NERDTreeShowFiles ? "on" : "off") . ")\n"
+        let @h=@h."\" ". g:NERDTreeMapToggleBookmarks .": bookmarks (" . (b:NERDTreeShowBookmarks ? "on" : "off") . ")\n"
+
+        "add quickhelp entries for each custom key map
+        let @h=@h."\"\n\" ----------------------------\n"
+        let @h=@h."\" Custom mappings~\n"
+        for i in g:NERDTreeKeyMap.All()
+            if !empty(i.quickhelpText)
+                let @h=@h."\" ". i.key .": ". i.quickhelpText ."\n"
+            endif
+        endfor
+
+        let @h=@h."\"\n\" ----------------------------\n"
+        let @h=@h."\" Other mappings~\n"
+        let @h=@h."\" ". g:NERDTreeMapQuit .": Close the NERDTree window\n"
+        let @h=@h."\" ". g:NERDTreeMapToggleZoom .": Zoom (maximize-minimize)\n"
+        let @h=@h."\"    the NERDTree window\n"
+        let @h=@h."\" ". g:NERDTreeMapHelp .": toggle help\n"
+        let @h=@h."\"\n\" ----------------------------\n"
+        let @h=@h."\" Bookmark commands~\n"
+        let @h=@h."\" :Bookmark [<name>]\n"
+        let @h=@h."\" :BookmarkToRoot <name>\n"
+        let @h=@h."\" :RevealBookmark <name>\n"
+        let @h=@h."\" :OpenBookmark <name>\n"
+        let @h=@h."\" :ClearBookmarks [<names>]\n"
+        let @h=@h."\" :ClearAllBookmarks\n"
+        silent! put h
+    elseif g:NERDTreeMinimalUI == 0
+        let @h="\" Press ". g:NERDTreeMapHelp ." for help\n"
+        silent! put h
+    endif
+
+    let @h = old_h
+endfunction
+
+
 "FUNCTION: s:UI.new(nerdtree) {{{1
 function! s:UI.New(nerdtree)
     let newObj = copy(self)
@@ -230,7 +338,7 @@ function! s:UI.render()
     "delete all lines in the buffer (being careful not to clobber a register)
     silent 1,$delete _
 
-    call nerdtree#dumpHelp()
+    call self._dumpHelp()
 
     "delete the blank line before the help and add one after it
     if g:NERDTreeMinimalUI == 0