I have opened several files in vim (particularly, in vimdiff). They are opened in multiple (vertically split) windows.

Is there a simple way, in which I can duplicate all this to another tab?

I could write a function, which will open a new tab & loop through all buffers in current tab to open in new tab using split/diffsplit. But I wanted to know, if there is an easier way.

  • 1
    As far as I can tell that's pretty much the only way.
    – lcd047
    Jul 8, 2015 at 6:32
  • OK... I will try to write one such script...
    – anishsane
    Jul 8, 2015 at 8:48

2 Answers 2


You can use :mksession with a specialized 'sessionoptions' to make this easier.

:set sessionoptions=blank,help,folds,winsize,localoptions
:source Session.vim

Using this technique we can create an easy to use command. Put the following command in your vimrc:

command! -bar DuplicateTabpane
      \ let s:sessionoptions = &sessionoptions |
      \ try |
      \   let &sessionoptions = 'blank,help,folds,winsize,localoptions' |
      \   let s:file = tempname() |
      \   execute 'mksession ' . s:file |
      \   tabnew |
      \   execute 'source ' . s:file |
      \ finally |
      \   silent call delete(s:file) |
      \   let &sessionoptions = s:sessionoptions |
      \   unlet! s:file s:sessionoptions |
      \ endtry

Now you can just call :DuplicateTabpane.

For more information see:

:h :mksession
:h :mkview
:h 'sessionoptions'
:h :tabnew
:h :source
  • Good enough... Plus, it will most likely maintain window positions for horizontally split windows too. I will accept this answer, after some more testing... Thanks
    – anishsane
    Jul 9, 2015 at 4:02
  • Works great. I also added the &diff logic from my answer to this answer in my .exrc..
    – anishsane
    Jul 9, 2015 at 7:05
  • Diff should work when 'sessionoptions' has the localoptions value. Jul 9, 2015 at 14:34

Wrote this function. Worked for me.

Note: This will only work for windows split vertically. This was sufficient for me. :-)

set splitright
function! DuplicateTab()
    "Note current position & view settings.
    let cur_win=winnr() - 1
    let view=winsaveview()
    "Are we running under vimdiff?
    let use_diff=&diff
    "Open new tab
    "Go to previous tab
    " For every window, open window in next tab
    windo exec "let localview=winsaveview() | let x=bufnr(\"\")|tabnext|vnew|exec 'buf ' . x | call winrestview(localview) | tabprev"

    " Reset first tab's position.
    exec winnr(). "wincmd h"
    exec cur_win . "wincmd l"
    call winrestview(view)

    "Go to next tab & close first (empty) window
    exec winnr() . "wincmd h"
    "Go to the same window being used in current (previous) tab
    exec cur_win . "wincmd l"

    " If running under vimdiff, start diff view
        windo diffthis

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