To be able to turn off vox in the film viewer. This would help greatly in some instances when recording film from the film viewer. Then you would not have to put sound over the recorded sound to get rid of the, sometimes chaotic and unwanted for the film scene, vox comms.
Also, engine sound in the external view would be nice. All you hear is the engines of surrounding aircraft and not the one you're looking at, which is odd. Again the same issue, you wouldn't have to put sound over the recorded sound to fix it.
Thankyou.
