Variable: register-preview-default-keys
register-preview-default-keys is a customizable variable defined in
register.el.gz.
Value
("a" "b" "c" "d" "e" "f" "g" "h" "i" "j" "k" "l" "m" "n" "o" "p" "q"
"r" "s" "t" "u" "v" "w" "x" "y" "z")
Documentation
Default keys for setting a new register.
This variable was added, or its default value changed, in Emacs 30.1.
Source Code
;; Defined in /usr/src/emacs/lisp/register.el.gz
(defcustom register-preview-default-keys (mapcar #'string (number-sequence ?a ?z))
"Default keys for setting a new register."
:type '(repeat string)
:version "30.1")