No option to hide user from facebrowser

Binary package hint: gnome-system-tools

The "Users Settings" application or the Login Screen used to (perhaps in Jaunty) have an option to set whether or not a user would appear in the face browser. There is no longer any obvious way to do this.
One may have a computer with multiple users, but only one of whom really needs to login via gdm (the others being purely ssh users), and as they do not need to be on the face browser list, having them there makes login for the other users (or single user in my case) more difficult.
This is linked to some extent with #445123 as that is also a problem with the lack of configuration for gdm and its facebrowser.

A workaround:
Users with 999 and below are hidden from gdm.
To change a user's uid, log in as a different user and go (as root):
usermod -u [999 or below] [user name]
groupmod -g [same number] [user name]
chown -R [user name]: /home/[user name]

ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: gnome-system-tools 2.30.0-0ubuntu2
ProcVersionSignature: Ubuntu 2.6.32-21.32-generic 2.6.32.11+drm33.2
Uname: Linux 2.6.32-21-generic x86_64
NonfreeKernelModules: nvidia
Architecture: amd64
Date: Fri Apr 30 03:57:05 2010
ExecutablePath: /usr/bin/users-admin
InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release amd64 (20100429)
ProcEnviron:
 PATH=(custom, user)
 LANG=en_US.utf8
 SHELL=/bin/bash
SourcePackage: gnome-system-tools