on many video files from 4k camera, I have to correct only audio that was extracted in adobe media,and processed in the audio editor like audacity, there is no possibility to replace it instead of the original. I need function import external audio and process in shana like aac or mp3 for mp4 video,or some other format,so I'm forced to use other tools before processing in a shana encoder which requires 3x more hard disk space. Can you implement this feature n next release.