diff --git a/autoload/magit/mapping.vim b/autoload/magit/mapping.vim
index 6bffbf8..1b16d92 100644
--- a/autoload/magit/mapping.vim
+++ b/autoload/magit/mapping.vim
@@ -9,6 +9,7 @@ let g:magit_commit_fixup_mapping   = get(g:, 'magit_commit_fixup_mapping',
 let g:magit_close_commit_mapping   = get(g:, 'magit_close_commit_mapping',      'CU' )
 let g:magit_reload_mapping         = get(g:, 'magit_reload_mapping',            'R' )
 let g:magit_edit_mapping           = get(g:, 'magit_edit_mapping',              'E' )
+let g:magit_edit_horyzontal_mapping= get(g:, 'magit_edit_horyzontal_mapping',   'j' )
 
 let g:magit_jump_next_hunk         = get(g:, 'magit_jump_next_hunk',            '<C-N>')
 let g:magit_jump_prev_hunk         = get(g:, 'magit_jump_prev_hunk',            '<C-P>')
@@ -128,7 +129,9 @@ function! magit#mapping#set_default()
 	call s:mg_set_mapping('n', g:magit_ignore_mapping,
 				\ "magit#ignore_file()", '\<\%(un\)\?staged\>')
 	call s:mg_set_mapping('n', g:magit_edit_mapping,
-				\ "magit#jump_to()", '\<\%(un\)\?staged\>')
+				\ "magit#jump_to('rightbelow vnew')", '\<\%(un\)\?staged\>')
+	call s:mg_set_mapping('n', g:magit_edit_horyzontal_mapping,
+				\ "magit#jump_to('rightbelow new')", '\<\%(un\)\?staged\>')
 
 	call s:mg_set_mapping('n', g:magit_reload_mapping,
 				\ "magit#update_buffer()")
@@ -186,6 +189,8 @@ function! magit#mapping#set_default()
 \.'      if cursor on filename header or hunk, unstage whole file',
 \g:magit_edit_mapping
 \.'      edit, jump cursor to file containing this hunk',
+\g:magit_edit_horyzontal_mapping
+\.'      edit, jump cursor to file containing this hunk (horyzontal split if buffer not opened)',
 \g:magit_jump_next_hunk.','.g:magit_jump_prev_hunk
 \.  '    move to Next/Previous hunk in magit buffer',
 \],
diff --git a/plugin/magit.vim b/plugin/magit.vim
index 6bfc681..fa2d455 100644
--- a/plugin/magit.vim
+++ b/plugin/magit.vim
@@ -1216,7 +1216,8 @@ endfunction
 " hunk
 " if this file is already displayed in a window, jump to the window, if not,
 " jump to last window and open buffer, at the beginning of the hunk
-function! magit#jump_to()
+" param[in] newwin_cmd: vim command to execute to open the new window
+function! magit#jump_to(newwin_cmd)
 	let section=magit#helper#get_section()
 	let filename=fnameescape(magit#git#top_dir() . magit#helper#get_filename())
 	let header_line_nb=magit#helper#get_hunkheader_line_nb()
@@ -1234,7 +1235,7 @@ function! magit#jump_to()
 	let buf_win = magit#utils#search_buffer_in_windows(filename)
 	let buf_win = ( buf_win == 0 ) ? last_win : buf_win
 	if ( buf_win == 0 || winnr('$') == 1 )
-		rightbelow vnew
+		execute a:newwin_cmd
 	else
 		execute buf_win."wincmd w"
 	endif