default partial xkb_symbols "mac_levelssym" {
    key <LWIN> {
      repeat= no,
      type= "ONE_LEVEL",
      symbols[Group1]= [ Hyper_L ],
      actions[group1]=[ SetMods(modifiers=Shift+Control) ]
    };
    key <RWIN> {
      repeat= no,
      type= "ONE_LEVEL",
      symbols[Group1]= [ Hyper_R ],
      actions[group1]=[ SetMods(modifiers=Shift+Control) ]
    };
};