I'm using the which-key package and I checked the docs and it seems you can set the max height for the buffer with (setq which-key-frame-max-height 20) , but I can't seem to find a way to set the minimum height. I want to leave at least and empty line if the which key buffer is just a line height.
;; --- Which Key Mode ---
(use-package which-key
:ensure t
:defer t
:config
(setq which-key-idle-delay 3.0)
(setq which-key-separator " → " )
(setq which-key-unicode-correction 3)
(setq which-key-prefix-prefix "+" )
(setq which-key-side-window-location 'bottom)
;; This line doesn't seem to do anything
(setq which-key-min-display-lines 13)
)
Shows just two lines:

(setq which-key-min-display-lines 2)do what you need? – Tyler Oct 05 '21 at 17:48which-keyconfig. – Fabman Oct 06 '21 at 08:18