Hi, newb to Huawei but not to videography. I have the P20 Pro. When recording video in 4K, the camera constantly changes exposure for the scene resulting in flickering of the light. I can lock in my chosen white balance, metering mode and focus choice. But I have no control over ISO, shutter speed and aperture. Obviously for a beginner this is great as the scene will always be correctly exposed. However, I post edit in Premiere Pro and I need control over these parameters also. Please can the developers release an updated mode to unlock these features (as they are in pro photo mode). Or if anyone knows of another solution I'm missing, please advise. The video quality on this camera is insane. If these features were unlocked, it truly would be a PRO camera. Thanks.