Sorry DFC but you have got it slightly wrong. Yes Edinburgh do use cctv to view the apron stands that cannot be seen from the tower (almost all of them) and it is a useful tool in conjunction with smr to be able to tell if aircraft have pushed back, reached their stand etc. However although there is a camera that points at B1 it cannot be used for controlling aircraft. That is why at Edinburgh you will never receive a conditional clearance for runway 06.
Edited to add that we can see the airbourne traffic, the terminal building isn't that high
