The ability to combine multiple audio files into a single audio group is very helpful, but once an AudioGroup is created and in place, it can't be easily edited or replaced.

For example, if an interaction can't be uploaded because the sound files used carry it over the current 15 MB limit, there's no easy way for the creator to trim out some of the items within an AudioGroup to reduce the size. The only option is to just upload a new, smaller version of the AudioGroup and manually updating all of the Keyframe references to that AudioGroup.

Ideally, the ability to add or remove items from existing AudioGroups would be sufficient, but if that would require too much UI work, the ability to overwrite a specific AudioGroup object to avoid having to manually update all the existing references would be sufficient.