Yes, But what is the point of having extra plots if we can't merge them. It will still keep the value. And you can add more value to VIP. I think what is the point of having extra plots if you can't do it.
I think plot merging should go to ever rank. Whats the point of having more than one plot if you can't make it bigger. It is a little weird but I think it should be given to every rank.