gnome-control-center keyboard shortcuts GUI does not allow multiple key bindings to be assigned to a single action

[Stephen]

I wish to assign the "Close window" action in gnome-control-center -> Keyboard -> Shortcuts -> Windows to multiple buttons on my keyboard. Specifically, I would like the traditional Alt-F4 to work as well as the easier to hit single pause/break button which I otherwise don't use.

When I click on "Close window" in the GUI, it allows me to choose exactly one keybinding to be assigned to this action. It should allow multiple bindings per action.

This is particularly unfortunate, as multiple keybindings IS supported under the hood. If I use dconf-editor to change org.gnome.desktop.wm.keybindings close to ['Pause', '<Alt>F4'], then both keybindings take effect. The GUI is all that is limiting this functionality.

ProblemType: Bug
DistroRelease: Ubuntu 12.10
Package: gnome-control-center 1:3.4.2-0ubuntu19
ProcVersionSignature: Ubuntu 3.5.0-18.29-generic 3.5.7
Uname: Linux 3.5.0-18-generic i686
ApportVersion: 2.6.1-0ubuntu6
Architecture: i386
Date: Thu Nov 15 08:47:24 2012
ExecutablePath: /usr/bin/gnome-control-center
InstallationDate: Installed on 2012-10-31 (14 days ago)
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release i386 (20111012)
MarkForUpload: True
SourcePackage: gnome-control-center
UpgradeStatus: Upgraded to quantal on 2012-11-01 (14 days ago)
usr_lib_gnome-control-center:
 activity-log-manager-control-center 0.9.4-0ubuntu4
 deja-dup 24.0-0ubuntu1
 gnome-control-center-signon 0.0.18-0ubuntu1
 indicator-datetime 12.10.2-0ubuntu3

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[TomasHnyk (sup)]

I think this is a duplicate of an older bug even if the upstream bugs these two launchpad bugs link to do not seem to be related. Feel free to unduplicate if I am mistaken.