What’s this?

This package provide other-window-or-split and window-split-dwim .

install

(use-package other-window-or-split
  :init (el-get-bundle conao/other-window-or-split)
  :bind* (("C-t"   . other-window-or-split)
          ("C-S-t" . previous-other-window-or-split)
          ("M-t"   . split-window-dwim)
          ("C-c j" . adjust-windows-size)))

Depending use-package and el-get for this sumple code.