Today I had some time to check how the proxies work, and so far they work even better than linking groups from Blender files which I have to used in my workflow. Using proxies saves a lot of time and avoids of missing textures. But I wonder how they will work with the new version of Standalone etc? I used many versions of Corona beginning from 1.5 to 3.0 and every change of Standalone required to do export from start, even if i had "Overwite geometry" to "only modified" checked.