If I were to ever upgrade from my current 520 to another Harmony remote - is it as simple as logging in and telling the account you now just have XXX remote and it will transfer everything over for you?

And if the answer is yes, will this work with the HK remote? I believe you can't use the logitech site for an HK remote (which is very silly). This would be my preferred remote if I switched, I am not fond of the other style of Harmonys and would appreciate the 8 position LCD compared to 4.