{ indices = [22, 23], key = K.LeftGUI & K.PageUp, },
        { indices = [26, 27], key = K.LeftGUI & K.PageDown, },

       let CH = import "chording.ncl" in
       {
          indices = m%"
            _ _ _ _ _   _ _ _ _ _
            _ _ _ _ _   _ _ _ _ _
            _ _ X X _   _ _ _ _ _
                _ _ _   _ _ _
          "% |> CH.indices,
          key = K.LeftGUI & K.PageUp,
        },
        {
          indices = m%"
            _ _ _ _ _   _ _ _ _ _
            _ _ _ _ _   _ _ _ _ _
            _ _ _ _ _   _ X X _ _
                _ _ _   _ _ _
          "% |> CH.indices,
          key = K.LeftGUI & K.PageDown,
        },