Variable: zone-all-windows-in-frame
zone-all-windows-in-frame is a customizable variable defined in
zone.el.gz.
Value
nil
Documentation
When non-nil, zone in all windows in the current frame.
Probably introduced at or before Emacs version 31.1.
Source Code
;; Defined in /usr/src/emacs/lisp/play/zone.el.gz
(defcustom zone-all-windows-in-frame nil
"When non-nil, zone in all windows in the current frame."
:type 'boolean)