type
  TFoo = record
    i: UInt64;
    b: Boolean;
  end;

  TFooArray = array of TFoo;

var
  Foo: TFooArray;

begin
  // Operator not compatible
  // Maybe Right.VarType = Left.ArrayType ?
  // Foo += [1, False];

  // Works
  Foo += TFoo([1, False]);
end.