Camray 5 boiler - where's the water feed valve?

[Jacko65]

My wife's been bleeding the radiators and now there's on pressure in the heating system.
I am looking at the boiler and can see the oil feed inlet below the boiler - this is a silver flexible pipe with a valve on it.
I know I need to repressure the water in the radiators and previously on other combi boilers this was just below the boiler on a feed pipe - which then moves the dial with the water pressure up.
I can't find the water control valve to repressure the system.
Help - it's cold!

 

[Jacko65]

It was hidden under the back panel that I had thought (incorrectly) wouldn't come off.