display-buffer-at-bottom

display-buffer-at-bottom is a compiled Lisp function in `window.el'.

(display-buffer-at-bottom BUFFER ALIST)

Try displaying BUFFER in a window at the bottom of the selected frame.
This either reuses such a window provided it shows BUFFER
already, splits a window at the bottom of the frame or the
frame's root window, or reuses some window at the bottom of the
selected frame.