adding fields to user control panel options page?

[Mutt]

I'd like to add some fields to the user control panel options page something like "Show Signatures" or "Show Avatars". I don't want to just add a new profile field becasue it would be on the wrong page. I'd like it listed with the other site options found on profile.php?do=editoptions

can anyone recommend an existing hack that does something like this so i can look at how it's accomplished?

it doesn't necessarily need to even be a 3.8 mod. I'm sure a 3.6 or 3.8 mod would get me close enough. no need to reinvent the wheel.

thanks