If someone knows how to navigate the SDK and edit cockpits, there is a way to install an EFB in any aircraft. It needs to be set to a hard point. Adding An EFB
An easy way out of this for Asobo is to offer an aircraft configuration with the EFB installed. Then those who want it could simply select that configuration of aircraft. It will be hard locked, so no making it go away in flight. But in RL flying I always had my iPad out and could not make it go away either.
If anyone is an SDK expert and would care to show us Luddites how to do it, we would much appreciate it.