It would be fantastic that you could store looks from the Live view somewhere.
Also it would also be very good that current look (values from fixutre, LED screen etc) in Live view saves with the file when you save it, so if the computer or software crash you can come back to the look you where working on before that crash and you dont have to start from scratch again.
If you take a snapshots the dmx values remain and you'll keep the look.
You can get a still and a video movie from the Snapshot menu.
/Bernat