Hello,
The indications of the "on-screen" overlay controls represent the actual position of the rudders, throttle and thrusters, the Istwert.
The meters on the bridge or wing consoles represent the target value, the setpoint, Sollwert, not the actual value.
Switching to an inside view could/will miss the refreshing of the setpoints of the meters until they are activated by a click on a meter. As far as I know, from then on, the meters will follow the controls.
Anyway, the actual measured values (should) remain unchanged when the views are switched....
To recover eaasily the overlay controls, the default key is "C" - I changed it to Space.
Regards,
Luc