+1
Csv would do imho (can implement wathever one would want with it)
But yes it’s a good idea.
It could also be cool to implement the variations around ITU-R BS. 1770-3 as built-in presets, which means LKFS, Gate on/off (10/8/6) short-term alerts, real time Loudness distribution etc…
Dialog detection for LKFS is needed as well (DVD & BR Authoring) but not so easy to get, I believe…