#Only with vim

There's a few options to make navigation between splits less tedious in vanilla vim.

First, you probably want to have `set switchbuf=useopen` in your vimrc (`:h 'switchbuf'`) to reuse a split, instead of opening the file in the current split.

If you have the buffer number in `'statusline'` (i.e `%n`), you can then easily switch to a split by number with `:sbuffer buffnumber`.

This will also work if you give a unique pattern from the name. If you are in the split 'foo' and have too more splits 'bar' and 'baz', `:sbuffer az` will switch to 'baz' split.

You can have a mapping to make it easier : `nnoremap <leader>b :sbuffer ` (there's a space at the end).

#With FZF

Besides, could use [fzf.vim][1] plugin (requires [fzf][2]) and its `:Buffers` command.

Similarly to `switchbuf=useopen`, you'll want `let g:fzf_buffers_jump = 1` in your vimrc to reuse an open splits.

The command will show a list of buffers which you can strip down with fuzzy search, and navigate with `<c-j>` and `<c-k>`

`<Enter>` will then switch to the split if already open, or else use the current one. `<c-v>`, `<c-x>` or `<c-t>` will open the buffer in a new vertical split, horizontal split or tab.

You could have a mapping to launch `:Buffers` like `nnoremap <leader>b :Buffers<cr>`.


  [1]: https://github.com/junegunn/fzf.vim
  [2]: https://github.com/junegunn/fzf/wiki