apple keyboard debian (dirrrty!) /usr/share/X11/xkb/symbols/macintosh_vndr/apple

apple

// Aluminium Keyboard: make F13, F14, F15 PC-ish (Print, Scroll_Lock, Pause)
partial function_keys keypad_keys modifier_keys
xkb_symbols "alupckeys" {
    key <RWIN> { [ Menu ] };
    key <FK13> { [ Insert ] };
    key <FK14> { [ Scroll_Lock ] };
    key <FK15> {
      type= "PC_CONTROL_LEVEL2",
      symbols[Group1]= [ Pause, Break ]
    };
    override key <NMLK> { [ Num_Lock, Pointer_EnableKeys ] };
};