Hello - is there a reason why the City of London (i.e. financial district between Westminster and Tower Hamlets, as opposed to the Greater London city region) is not available within the Cities parameter in Analytics? Other London boroughs and urban centres within Greater London are (e.g. Islington, Bromley, Wimbledon, Twickenham), but not the City.
It would be very helpful to be able specify this area, particularly for B2B use cases as it is one the UK's most important financial hubs.