/* Return "n"-th keybinding in keybindings chain from "kb_p" on. */
static struct KeyBinding * get_keyb_of_n(struct KeyBinding * kb_p, uint16_t n);
/* Return "n"-th keybinding in keybindings chain from "kb_p" on. */
static struct KeyBinding * get_keyb_of_n(struct KeyBinding * kb_p, uint16_t n);