BTW, the solution suggested in #926611:
/desktop/gnome/interface/menubar_accel /apps/compizconfig-1/profiles/Default/plugins/unityshell/screen0/options/panel_first_menu /apps/compiz-1/plugins/unityshell/screen0/options/panel_first_menu
doesn't work for me, as I simply don't have these keys in gconf-editor.
BTW, the solution suggested in #926611:
/desktop/ gnome/interface /menubar_ accel compizconfig- 1/profiles/ Default/ plugins/ unityshell/ screen0/ options/ panel_first_ menu compiz- 1/plugins/ unityshell/ screen0/ options/ panel_first_ menu
/apps/
/apps/
doesn't work for me, as I simply don't have these keys in gconf-editor.