partial alphanumeric_keys
xkb_symbols "chromebook" {
    include "level3(ralt_switch)"
    key <I150> { [ Delete ] };
    key <LWIN> { [ Super_L, Super_L, Caps_Lock, Super_L ] };
    key <LEFT> { type = "CHROMEBOOK", [ Left, Left, Home, Home, Home ] };
    key <RGHT> { type = "CHROMEBOOK", [ Right, Right, End, End, End ] };
    key <UP>   { type = "CHROMEBOOK", [ Up, Up, Prior, Prior, Prior  ] };
    key <DOWN> { type = "CHROMEBOOK", [ Down, Down, Next, Next, Next  ] };
    key <FK01> { [ F1, F1, XF86Back ] };
    key <FK02> { [ F2, F2, XF86Forward ] };
    key <FK03> { [ F3, F3, XF86Reload ] };
    key <FK04> { type = "CHROMEBOOK", [ F4, F4, F11, F11 ] };
    key <FK05> { type = "CHROMEBOOK", [ F5, F5, F12, F12 ] };
    key <FK06> {
        [ F6, F6, XF86MonBrightnessDown ],
        [ 
            NoAction(), 
            NoAction(), 
            RedirectKey(keycode=<I232>, clearmods=LevelThree) 
        ]
    };
    key <FK07> {
        [ F7, F7, XF86MonBrightnessUp ],
        [ 
            NoAction(), 
            NoAction(), 
            RedirectKey(keycode=<I233>, clearmods=LevelThree)
        ]
    };
    key <FK08> {
        [ F8, F8, XF86AudioMute ],
        [ 
            NoAction(), 
            NoAction(), 
            RedirectKey(keycode=<MUTE>, clearmods=LevelThree) 
        ]
    };
    key <FK09> {
        [ F9, F9, XF86AudioLowerVolume ],
        [ 
            NoAction(), 
            NoAction(), 
            RedirectKey(keycode=<VOL->, clearmods=LevelThree) 
        ]
    };
    key <FK10> {
        [ F10, F10, XF86AudioRaiseVolume ],
        [ 
            NoAction(), 
            NoAction(), 
            RedirectKey(keycode=<VOL+>, clearmods=LevelThree) 
        ]
    };        
};