Hello, VOoM is a plugin for Vim that emulates two-pane outliner: http://www.vim.org/scripts/script.php?script_id=2657 The most recent version has support for Markdown. Command :Voom markdown creates outline from Markdown headers. Both underline-style and hashes-style headers are supported. There is screenshot at http://vim-voom.webs.com/index.html#rest It's for reST, but it looks and works pretty much the same for all markups. Regards, Vlad