Those who have not yet been able to Exchange, HK $ exchange has on the outside, there will be approximately 2-3 service in the Bank through immigration when, still exist but that the exchanges were also easier to find.
Who has not been able to HK $ exchange traded funds on the outside is about 2-3 banks serve. In recent immigration when it is available again. But I would find it easier to go outside.
Those who haven't the money HK $can change at will is about 2 outside - 3 banking services exist. Inner passing through a when already existed. But it will get easier exchange outside