You can always use configuration editor like dconf-editor (sudo apt-get install dconf-editor), it'll automatically create default setting or a copy from another desktop setting (e.g. Ubuntu Desktop) if you happen to login on it for the first time.
For manually edit window manager keybindings, it should be here: org.gnome.desktop.wm.keybindings, or just search for it.
You'll need to type the keyword/value manually tho', it is a low-level editor.
You can always use configuration editor like dconf-editor (sudo apt-get install dconf-editor), it'll automatically create default setting or a copy from another desktop setting (e.g. Ubuntu Desktop) if you happen to login on it for the first time.
For manually edit window manager keybindings, it should be here: org.gnome.desktop.wm.keybindings, or just search for it.
You'll need to type the keyword/value manually tho', it is a low-level editor.
I solved this using CompizConfig Settings manager. Under "Commands" I added my command and configured the ketboard shortcut.