I am sure this is old news for many of you, but I am just experiencing. I just downloaded a free program which combines three like pictures with different exposures and automatically chooses the best exposure in different regions and combines them into one image. There were several choices however I downloaded HDRtist which is free with some paid features on the App Store. I set my drone on AEB (Auto Exposure Bracketing) and I dropped three photos into the program and BAM! It automatically picked the darkest exposure for the sunset and the lightest exposure for the landscape.