> that key combo is hardcoded in LISP isearch-forward turns on a minor mode that has it's own keymap a snippet from isearch.el: (defvar isearch-mode-map

> that key combo is hardcoded in LISP isearch-forward turns on a minor mode that has it's own keymap a snippet from isearch.el: (defvar isearch-mode-map ... ;; Several non-printing chars change the searching behavior. (define-key map "\C-s" 'isearch-repeat-forward) (define-key map "\C-r" 'isearch-repeat-backward) hence to redefine C-s, to, say F12: (global-set-key [f12] 'isearch-forward) (define-key isearch-mode-map [f12] 'isearch-repeat-forward) & so on I don't see what is the problem here