Variable: custom-command-buttons
custom-command-buttons is a buffer-local variable defined in
cus-edit.el.gz.
Documentation
A list that holds the buttons that act on all settings in a Custom buffer.
custom-buffer-create-internal adds the buttons to this list.
Changes in the state of the custom options should notify the buttons via the
:notify property, so buttons can be enabled/disabled correctly at all times.
Source Code
;; Defined in /usr/src/emacs/lisp/cus-edit.el.gz
(defvar-local custom-command-buttons nil
"A list that holds the buttons that act on all settings in a Custom buffer.
`custom-buffer-create-internal' adds the buttons to this list.
Changes in the state of the custom options should notify the buttons via the
:notify property, so buttons can be enabled/disabled correctly at all times.")