"Basil L. Contovounesios" <contovob@tcd.ie> writes:

> One solution is to replace the hard-coded bindings with
> \[command]-sequences; another to replace the whole listing with
> \{message-mode-map}.  In both cases, the binding listed for
> message-insert-or-toggle-importance will be C-c C-u instead of
> C-c C-f C-i, due to the higher precedence of the former.  WDYT?

I attach a patch as an example of doing the former.
The latter would probably look as follows: