Though it would be interesting as an optional feature. Though I have no clue if its possible to implement something like that.
"variable signatures" is something that is often brought up. Some way to choose how your message is signed, perhaps on a case-by-case basis. I can see how this would be useful, especially in a theocracy. You might want your religious title used if you are addressing the realm on a matter of religious authority, but use a Marshal title when sending order to your army.
I'm pretty sure this one has routinely been turned down.
