diff --git a/autoload/fugitive.vim b/autoload/fugitive.vim
index eca6893..88e1502 100644
--- a/autoload/fugitive.vim
+++ b/autoload/fugitive.vim
@@ -3695,12 +3695,14 @@ function! fugitive#MapJumps(...) abort
     let nowait = v:version >= 704 ? '<nowait>' : ''
     if get(b:, 'fugitive_type', '') ==# 'blob'
       nnoremap <buffer> <silent> o     :<C-U>.,.+1Gblame<CR>
-      nnoremap <buffer> <silent> S     :<C-U>vertical .,.+1Gblame<CR>
+      nnoremap <buffer> <silent> S     :<C-U>echoerr 'Use gO'<CR>
+      nnoremap <buffer> <silent> gO    :<C-U>vertical .,.+1Gblame<CR>
       nnoremap <buffer> <silent> O     :<C-U>tab .,.+1Gblame<CR>
       nnoremap <buffer> <silent> p     :<C-U>.,.+2Gblame<CR>
     else
       nnoremap <buffer> <silent> o     :<C-U>exe <SID>GF("split")<CR>
-      nnoremap <buffer> <silent> S     :<C-U>exe <SID>GF("vsplit")<CR>
+      nnoremap <buffer> <silent> S     :<C-U>echoerr 'Use gO'<CR>
+      nnoremap <buffer> <silent> gO    :<C-U>exe <SID>GF("vsplit")<CR>
       nnoremap <buffer> <silent> O     :<C-U>exe <SID>GF("tabedit")<CR>
       nnoremap <buffer> <silent> p     :<C-U>exe <SID>GF("pedit")<CR>
     endif
@@ -3710,7 +3712,8 @@ function! fugitive#MapJumps(...) abort
     nnoremap <buffer> <silent> C     :<C-U>exe 'Gedit ' . <SID>fnameescape(<SID>ContainingCommit())<CR>
     nnoremap <buffer> <silent> cc    :<C-U>exe 'Gedit ' . <SID>fnameescape(<SID>ContainingCommit())<CR>
     nnoremap <buffer> <silent> co    :<C-U>exe 'Gsplit ' . <SID>fnameescape(<SID>ContainingCommit())<CR>
-    nnoremap <buffer> <silent> cS    :<C-U>exe 'Gvsplit ' . <SID>fnameescape(<SID>ContainingCommit())<CR>
+    nnoremap <buffer> <silent> cS    :<C-U>echoerr 'Use cgO'<CR>
+    nnoremap <buffer> <silent> cgO   :<C-U>exe 'Gvsplit ' . <SID>fnameescape(<SID>ContainingCommit())<CR>
     nnoremap <buffer> <silent> cO    :<C-U>exe 'Gtabedit ' . <SID>fnameescape(<SID>ContainingCommit())<CR>
     nnoremap <buffer> <silent> cp    :<C-U>exe 'Gpedit ' . <SID>fnameescape(<SID>ContainingCommit())<CR>
     nnoremap <buffer>          cf    :<C-U>Gcommit --fixup=<C-R>=<SID>SquashArgument()<CR>
diff --git a/doc/fugitive.txt b/doc/fugitive.txt
index c6bab86..78c6388 100644
--- a/doc/fugitive.txt
+++ b/doc/fugitive.txt
@@ -55,17 +55,17 @@ that are part of Git repositories).
                         dp    |:Git!| diff (p for patch; use :Gw to apply)
                         dp    |:Git| add --intent-to-add (untracked files)
                         dv    |:Gvdiff|
+                        gO    |:Gvsplit|
+                        g|    |:Git| checkout
+                        g|    |:Git| checkout HEAD (staged files)
+                        g|    |:Git| clean (untracked files)
+                        g|    |:Git| rm (unmerged files)
                         O     |:Gtabedit|
                         o     |:Gsplit|
                         P     |:Git| add --patch
                         P     |:Git| reset --patch (staged files)
                         q     close status
                         r     reload status
-                        S     |:Gvsplit|
-                        g|    |:Git| checkout
-                        g|    |:Git| checkout HEAD (staged files)
-                        g|    |:Git| clean (untracked files)
-                        g|    |:Git| rm (unmerged files)
                         .     enter |:| command line with file prepopulated
 
                                                 *fugitive-:Gcommit*
@@ -287,8 +287,8 @@ These maps are available in committed Git objects.
 o                       Jump to the |fugitive-object| under the cursor in a
                         new split.
 
-                                                *fugitive-S*
-S                       Jump to the |fugitive-object| under the cursor in a
+                                                *fugitive-gO*
+gO                      Jump to the |fugitive-object| under the cursor in a
                         new vertical split.
 
                                                 *fugitive-O*