I wanted to open another entry, but suppose since it relates, I can add it here. There should at a way to control and write/delete individual keys within material subset. That is for instance if I write an opacity value, there is no need write ALL other key attributes, such as Color, Self-illumination... etc I have outlined more about the problem in this thread: https://forum.reallusion.com/417746/Write-only-specific-subset-with-Add-proposal