Comment 18 for bug 965921

>> You'll still need to use dconf-editor though to set GNOME Shell shortcuts for Ubuntu 12.04

>Could you please explain how to set shortcut to launch terminal using dconf-editor?

I have the same question. I can use dconf to setup keyboard shortcuts for functions it has listed as default options, like mapping minimize to 'Scroll_Lock', but I haven't figure out how to add custom shortcuts, like launching a terminal via gnome-terminal with 'Insert'. How can I create a custom shortcut for launching a terminal in GNOME Shell and 12.04?

I should note that ctrl+alt+t works for me, but changing that shortcut in System Settings is ineffective.